Used Thread Cutting Machine 1/2-2 Inch for sale (127,617)

Condition: excellent (used), Year of construction: 1988, machine/vehicle number: 3269-007, Format (cm): 76 Lrsdpfx Abez Sn R Ds Asu Equipment / Additional information: Side tables, air table, 1xreserve knife

Condition: good (used), Thread cutting machine, pipe thread cutter -Pipe deburrer: for thread cutting machine -Pipe size: up to inner Ø 58 mm -Dimensions: see photos -Dimensions: 270/250/H75 mm -Weight: 2.7 kg Ljdpfxjwyu Hfj Ab Asru

Year of construction: 2000, operating hours: 10,000 h, condition: ready for operation (used), functionality: fully functional, Machine is in full functional state last time worked 25 days ago and its in your warehouse machine can be inspected and have video of machine working Lodpfj Adlxzox Ab Aoru

Condition: new, functionality: fully functional, Year of construction: 2025, control type: CNC control, laser type: fiber laser, laser power: 3,000 W, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, Type: Two chucks Lsdpowwz Dlsfx Ab Ajru Groove function: Standard Power range: 3KW, 6KW Round tube processing range: 10mm~160mm Square tube processing range: 10mm~160mm Chuck maximum speed: 130r/min Machine weight: 3T Power specification: 380VAC, 50Hz Optional loading rack: G16pro-automatic loading, G16pro-semi-automatic loading Optional unloading rack: servo unloading rack, cylinder unloading rack Standard: System 3000DE-DH, including nesting, supports servo, dustproof (Y axis), dustproof (X axis), dustproof (Z axis), rear card hollow dust removal, short tail material Optional: safety fence (light curtain), radiation-proof glass

Condition: used, XYZ 2-OP Compact Vertical machining Centre Year 2017 Pro-Track TMX Control Table Size: 457 x 381 mm X/Y/Z Travels: 355 x 305 x 455 mm Spindle Speeds: 50- 6,000 rpm Spindle BT 30 Spindle 3hp 8 Station Tool Changer Machine Weight: 1,100 kg Lodpfozu Ni Usx Ab Ajru Footprint: 760 x 1,220 mm

Condition: good (used), Pressing tool, sheet metal former, forming tool, straightening tool, special punches/mandrel elements, centering or positioning tool -Manufacturer: Mubea, Punching tool: Pipe notching tool, 18 pieces -Matrices: 8 pieces, sizes 1" to 1 1/4" -Stamps: 10 pieces, sizes 1" to 2" -Quantity/Dimensions: see photos/parts list -Submission/Price: complete Lrede Aa Tlhepfx Ab Aju -Transport dimensions: 360/170/H45 mm 170/150/H30 mm -Weight: 10.7 kg / 3 kg

Condition: good (used), 1 used mobile flame cutting system. Make: MÜLLER. Model: Perfecta "Quicky / MESSER GRIESHEIM" - Continuously adjustable speed - Forward/reverse operation - 1 adjustable torch - 230 V connection Lsdpjv N Hhbefx Ab Asru Siegfried Volz Machine Tools Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel

Condition: good (used), Year of construction: 1999, functionality: fully functional, machine/vehicle number: 0111, The Bacciottini ROL 110 is a high-speed rotary creasing, perforating, and cutting machine designed for paper and cardboard materials. The manufacturer is Bacciottini Group Srl. Key Features: • Maximum working width / paper size: 110 cm (1100 mm) • Functions: Automatic and high-speed creasing, perforating, punching, and cutting of paper and heavy-duty cardboard. • Production years: These machines were manufactured between 1994 and 2000. Lredpfxj Adrlze Ab Asu Please note that more information can be found in the attached video of a similar machine.

Condition: new, functionality: fully functional, Year of construction: 2025, laser power: 30 W, shaft length: 10,700 mm, Laser engraving machine with 30-watt laser power - Laser source: 30-watt CO2 metal tube Demonstration machine with minimal operating hours - Includes Windows 10 Pro 64-bit PC system - Includes 22" monitor - Everything is pre-installed and adjusted - Engraving software in German - Very easy to use - Simply switch on and start - CO2 laser source with 30 watts for high-contrast and fast markings with extremely high resolution - Deep engraving possible - Wobble function Lrjdpfx Aeirmgmeb Aou - For engraving on e.g., wood, plastic, anodized surfaces, etc. - Heavy-duty industrial quality - Complete system / ready for immediate use - Work area approx. 500 x 600 x 600mm (l x w x h) - Clamping surface with mounting threads in a 50mm grid - LED work area lighting - 50mm pipe connection for smoke extraction - Engraving area approx. 180 x 180mm - Expandable up to approx. 300 x 300mm - Includes foot switch to start the engraving process Please also note our attractive leasing/hire-purchase offers. Sales are exclusively to business customers. Delivery / consultation / sales only in Germany / Austria / Switzerland Machine dimensions approx.: Width: 800mm Height: 1800mm Depth: 1000mm Weight: approx. 150kg

Condition: good (used), Robust 800 Roll-to-Sheet Slitter Lrsdpfx As Ad Hi Ijb Aou Machine in very good condition, ready for production. Slitting and cross-cutting machine, roll-fed. Sheeter Ideal for bookbinding veneer, paper, canvas, eco-leather, PVC, plastics, self-adhesive foil, etc. Easy format setting, computer control. Manual and automatic operation. Technical specifications: Total power: 3.5 kW Working width: 800 mm Maximum roll diameter: 600 mm Maximum roll weight: 250 kg Feeding/cutting length controlled by computer Working speed adjustable via inverter Approximate dimensions (L x W x H): 1970 x 1310 x 1400 mm Weight: approx. 1100 kg Includes a sheet outfeed table.

Condition: good (used), Year of construction: 2013, LVD Orion 3015 Plus laser cutting system, Year of manufacture 2013, LVD control system, Lodpfx Ajwcft Uob Aoru X/Y/Z travel 3080/1555/240 mm, Sheet metal size 3000 x 1500 mm, Max. sheet metal weight 750 kg, Laser power 2.5 kW, CO2 laser, Max. cutting capacity steel/stainless steel/aluminum 16/10/6 mm,

Condition: used, functionality: fully functional, This machine is capable of producing bent bolts with threads on one end (eye bolt) or both ends (u bolt) Lsdpszt S U Rofx Ab Ajru

Condition: new, functionality: fully functional, Year of construction: 2026, laser type: fiber laser, laser power: 12,000 W, laser wavelength: 1,070 nm, sheet thickness steel (max.): 35 mm, sheet thickness stainless steel (max.): 30 mm, sheet thickness aluminum (max.): 25 mm, table width: 1,500 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 120 mm, input voltage: 400 V, type of input current: three-phase, type of cooling: water, overall weight: 5,500 kg, door opening width: 3,000 mm, door opening height: 1,000 mm, Equipment: CE marking, cabin, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, safety light barrier, New laser cutting machine with 12 kW fiber laser Our goal is to offer highly precise, long-term stable, and yet affordable laser machines. Our machines are ideal for workshops and repair shops. A perfectly developed cutting parameter library is included in the scope of delivery, as well as first-class service. Lodpfxsxg Dn Ao Ab Asru Please also note our attractive leasing/hire-purchase offers. - Machine with automatic exchange table - Machine bed lined with graphite plates - Machine measured and adjusted with Renishaw system (including measurement protocol) - very space-saving - extremely energy-efficient cutting system - requires only approximately 8.5 x 3.5 meters of floor space - 12 kW laser source from MaxPhotonics (G5/German version) - Top quality, schedule a viewing now! Cutting of steel sheet up to 35mm Cutting of stainless steel sheet up to 20mm Cutting of aluminum sheet up to 20mm - Travel range 1500 x 3000mm - Machine control in German - Safety light curtain for maximum operator protection - Extensive collision protection measures of the cutting head - on three sides, large laser protection windows for observing the cutting process - automatic, programmable 3-gas switching (compressed air, nitrogen, oxygen) - Extensive cutting parameter file - incl. nesting module - very easy to operate - powerful laser chiller - Machine control in German - extensive service and warranty services - powerful laser chiller - Filter extraction optional The following options are also available: - automatic nozzle changer (optional) - automatic nozzle centering (optional) - Raw material sheet detection and part nesting via CypVision camera system (optional) - Import of 3D files (.stp) and unfolding (optional) - direct import of SolidWork, SolidEdge, Inventor, etc. (optional) - Nesting, calculation, scrap plate management, etc. (optional) - ERP system can be combined with all your other sheet metal processing machines (optional) Sales are exclusively to commercial businesses. Delivery / consultation / sales only in Germany / Austria / Switzerland Machine dimensions approx.: Length: 8.5m Height: 2.3m Width: 3.5m Total weight: approx. 8000kg Do you need a different laser power, different table shape, or different table size? No problem. I will gladly prepare a suitable offer. For example, a 2 kW machine from 29,990 euros or a 6kW machine from 79,900 euros Are you unsure which laser power is suitable for your application? Just call us! Of course, I will carry out cutting tests according to your requirements. There are many possibilities here.

Condition: new, functionality: fully functional, Year of construction: 2025, laser type: fiber laser, laser power: 40,000 W, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, Type: exchange table, fully protected exchange table, ultra-high power, dual platform Laser power: 12KW15KW, 20KW, 30KW, 40KW, 3KW.6KW Standard hardware: scrap car, fire brick, fully automatic butter filling, dual-control workbench, adaptive multi-angle site placement, rear lift light-blocking door, rear camera, internal camera, monitoring display, radiation-proof glass, top cover beam light curtain, partition dust removal Lrodpfx Aewxam Iob Aeu Optional hardware: light-blocking rubber strip, high-pressure proportional valve (standard above 6KW), safety door lock, independent laser cabinet, rear exchange table light curtain, top cover fan Optional functions: FDA configuration, CSA configuration, TUV configuration, conventional CE configuration

Condition: new, functionality: fully functional, Year of construction: 2026, control type: CNC control, degree of automation: automatic, actuation type: electric, controller model: HypCut, laser type: fiber laser, laser source manufacturer: MaxPhotonic, laser power: 20,000 W, laser wavelength: 1,080 nm, sheet thickness (max.): 50 mm, sheet thickness steel (max.): 50 mm, sheet thickness stainless steel (max.): 30 mm, sheet thickness aluminum (max.): 30 mm, sheet thickness brass (max.): 20 mm, sheet thickness copper (max.): 15 mm, table width: 1,500 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 120 mm, input voltage: 400 V, input current: 110 A, input frequency: 50 Hz, type of input current: three-phase, type of cooling: water, compressed air connection: 20 bar, overall weight: 9,500 kg, door opening width: 1,000 mm, door opening height: 2,000 mm, Equipment: CE marking, cabin, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, New laser cutting machine with 20 kW fiber laser Our goal is to offer highly precise, long-term stable, and yet affordable laser machines. Our machines are ideal for workshops and repair shops. A comprehensive cutting parameter library is included in the scope of delivery, as well as first-class service. - 20kW laser power for maximum performance - Machine incl. automatic exchange table - Machine bed lined with graphite plates - Machine measured and adjusted with Renishaw system (including measurement report) - Space-saving - Extremely energy-efficient cutting system - Requires only approx. 9.5 x 3.5 meters of installation space - 20 kW laser source from MaxPhotonics (G5/CE version) The following options are also available: - Automatic nozzle changer (Optional) - Automatic nozzle centering (Optional) - Sheet metal detection and part nesting via CypVision camera system (Optional) - Import of 3D files (.stp) and unfolding (Optional) - Direct import of SolidWork, SolidEdge, Inventor, etc. (Optional) - Nesting, calculation, and ERP integration (Optional) - Top quality, schedule a visit now! Cutting of steel sheet up to a maximum of 50mm Cutting of stainless steel sheet up to a maximum of 40mm Cutting of aluminum sheet up to a maximum of 40mm - Travel range 1500 x 3000mm - Machine control in German - Safety light curtain for maximum operator protection - Extensive collision protection measures for the cutting head - On three sides, large laser protection windows for observing the cutting process - Automatic, programmable 3-gas switching (Compressed air, nitrogen, oxygen) - Comprehensive cutting parameter file - Incl. nesting module - Very easy to operate - Powerful laser chiller - Machine control in German - Extensive service and warranty services - Powerful laser chiller - Filter extraction optional Sales are exclusively to commercial businesses. Delivery / Consultation / Sales only in Germany / Austria / Switzerland Machine dimensions approx.: Length: 8.5m Lrodpjyhhnkofx Ab Aju Height: 2.3m Width: 3.5m Total weight: approx. 9500kg Do you need a different laser power, a different table shape, or a different table size? No problem. I will gladly create a suitable offer. e.g. 2 kW machine from 29,990 euros or 6kW machine from 79,900 euros Are you unsure which laser power is suitable for your application? Just give us a call. Of course, I will carry out cutting tests according to your requirements. A lot is possible here.

Condition: new, functionality: fully functional, Year of construction: 2025, control type: CNC control, degree of automation: automatic, laser type: fiber laser, laser power: 3,000 W, warranty duration: 24 months, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, Working Area (mm): 3048×1524 X-Axis Travel (mm）: 1524 Y-Axis Travel(mm）: 3048 Z-Axis Travel（mm）: 80 X/Y Axis Positioning Accuracy: ≤0.03mm/m X/Y Axis Repositioning Accuracy: ≤±0.02mm Maximum Synthetic Positioning Speed: 150m/min Maximum Acceleration: 1.2G Cutting Slit Width: 0.1mm-0.5mm (measured for platesless than3mm thick) Cutting Surface Roughness: Ra3.2um-Ra25.4um(measured for plate thickness below3mm） Floor Size(mm): 6000*3000 Mainframe Dimension(mm): 5000*2300*1800 Screen Size: 21"LCD TransmissionMode: Rack andpinion dual drive Table Loading Capacity: 1.1(ton) Lrodpexvwcxjfx Ab Asu

Condition: good (used), Perfecta 168 TS paper guillotine Lrsdpfjz S Uy Eex Ab Aou The machine is in very good condition and ready for production. Year of manufacture: 2010. Available immediately from stock. The guillotine can be used as a standalone unit or integrated into cutting systems. Program creation is handled via the menu and covers a wide range of cutting tasks, such as single cuts, custom programming, multiple cuts, clamping without cutting, and automatic transfer of actual values. Perfecta premium-class paper cutters are manufactured in Bautzen, Germany. Distinguishing features of Perfecta machines: – Interactive user interface – 18.4” touchscreen – USB interface – Ethernet interface – Windows CE operating system – CIP data module – Positioning via an electronic handwheel – Optimized cutting cycle – Programmable clamp pressure – Automatic adjustment of clamp pressure based on cutting width – Automated front-access knife change – Quick-change knife system – New, single-piece cast machine frame for increased stability – Maintenance-free electromagnetic clutch Technical specifications: Cutting length: 1680 mm Maximum pile height: 165 mm Insertion depth: 1680 mm Minimum cut with false clamp plate: 77 mm Minimum cut without false clamp plate: 26 mm Maximum backgauge speed: 300 mm/s Backgauge guidance: above the work table Main motor power: 7.5 kW Net weight: 6900 kg The machine comes equipped with a spare knife, a paper jogger, a false clamp plate, documentation, and a set of tools.

Condition: used, functionality: fully functional, Year of construction: 2017, control type: CNC control, Used LVD PHOENIX FL 3015 Fiber laser cutting machine in excellent condition for sale. This is a dynamic and versatile laser cutting machine designed for precise and fast cutting of various types and thicknesses of metal sheets. The reliable LVD construction, combined with the IPG Fiber laser source, ensures high cutting quality, performance, and low operating costs. The machine is fully functional and can be inspected and tested at our warehouse. Equipment: Automatic exchangeable work tables IPG Fiber laser source – 6 kW 10 kW laser cutting head LVD Touch-L control system Automatic focus adjustment Automatic nozzle changer Automatic nozzle calibration Automatic nozzle cleaning Nozzle magazine with up to 10 positions Automatic sheet position detection Automatic cutting gas selection (oxygen, nitrogen) Cooling system Fume extraction system Sheet cleaning comb Interface with sheet storage Technical specifications Manufacturer: LVD Model: PHOENIX FL 3015 Fiber Year of manufacture: 2017/08 Laser source: IPG Fiber Laser power: 6 kW Operating parameters Maximum sheet size: 3050 × 1525 mm X-axis travel: 3185 mm Y-axis travel: 1560 mm Z-axis travel: 130 mm Maximum table load: 750 kg Table change time: 35 s Maximum X-Y positioning speed: 140 m/min Repeatability accuracy: ±0.025 mm Maximum cutting thicknesses Structural steel (O₂): 30 mm Structural steel (N₂): 8 mm Lrsdpfezhmtwex Ab Aju Stainless steel (N₂): 25 mm Aluminum (N₂): 25 mm Copper (O₂): 6 mm Brass (N₂): 12 mm Operating hours Power ON hours: 51,061 h Cutting hours: 24,262 h Application Ideally suited for sheet metal processing companies, metal structure manufacturers, ventilation system manufacturers, and manufacturers in the automotive, agricultural machinery, and other industries that produce precision metal products and require fast, accurate, and reliable laser metal cutting. If you have any further questions, we will be happy to answer them.

Condition: used, functionality: fully functional, Year of construction: 2007, control type: CNC control, For sale: CO₂ Tube Laser BLM Group Adige LT712D The machine is fully operational and in daily use in production. Inspection and testing on site are possible. The laser source ROFIN RF tube DC025 has been replaced with a new one. The new source has only 2386 operating hours. Specifications: Model: BLM Adige LT712D CO₂ tube laser Year of manufacture: 2007 Laser source: Rofin RF tube DC025 New laser source operating hours: 2386 h Total machine operating hours: 89186 h Automatic tube loading and unloading CNC control Autofocus cutting head Suitable for cutting round, square, and rectangular profiles Automatic profile centering and measurement devices Professional industrial construction Scope of supply: Rofin DC-K laser integration AK-HP 591-LT712 cutting head 5” focusing system 6500 mm tube system Automatic unloading module Ljdpfxey R Tt So Ab Ajru The machine is suitable for the production of metal constructions, furniture, automotive, tubular structures, and other metal products. If you have any further questions, we will be happy to answer them.

Condition: reconditioned (used), travel distance X-axis: 4,000 mm, travel distance Y-axis: 2,000 mm, travel distance Z-axis: 200 mm, warranty duration: 6 months, CARETTA MODULA 4020 – 3-AXIS WATERJET – 4,000 × 2,000 MM – REFURBISHED WITH WARRANTY Available without pump or complete with a KMT Streamline SL-V 50 Classic 50 HP pump. The first year of CAD-CAM IGEMS subscription is included in both configurations. B&B Waterjet Abrasive offers a Caretta Technology Modula 4020 3-axis waterjet cutting machine, with a working area of 4,000 × 2,000 mm, self-aligning gantry, and ECS CNC 1802 numerical control. The machine is supplied with refurbished or new components, a new Dialine cutting head with integrated diamond, and a new abrasive metering unit. CONFIGURATIONS AND PRICES • €40,000 + VAT: machine without high-pressure pump, with the first year of IGEMS subscription included. • €65,000 + VAT: machine complete with a KMT Streamline SL-V 50 Classic pump, with the first year of IGEMS subscription included. From the second year onwards, the IGEMS subscription costs €1,500 + VAT per year. For both configurations, transport, installation, commissioning, training, and other ancillary services are excluded and can be quoted separately. TECHNICAL SPECIFICATIONS • Manufacturer: Caretta Technology • Model: Modula 4020 • Technology: abrasive waterjet cutting • Configuration: 3 axes with self-aligning gantry • Working area: 4,000 × 2,000 mm • Controlled Z-axis, 200 mm stroke • Numerical control: ECS CNC 1802 • Cutting head: new Dialine with integrated diamond • Abrasive metering unit: new • Abrasive tank: 200 liters • Motors and drives: Yaskawa • Guides and slides: INA • Rack: Güdel with helical teeth • CAD-CAM software: IGEMS, first year of subscription included SLUDGE SYSTEM INCLUDED IN BOTH CONFIGURATIONS Provision for a sludge disposal system, with a tank, semi-automatic electrical panel, and diaphragm pump included in the supply. PUMP FOR THE €65,000 + VAT CONFIGURATION • Brand: KMT • Model: Streamline SL-V 50 Classic • Power: 50 HP / 37 kW • Maximum pressure: 3,800 bar • Flow rate at 3,800 bar: 3.7 l/min • Topwork refurbished to new condition Lrjdpfx Abo Ad I U Ee Asu • Oil and filters replaced The indicated power refers to the pump, not to the total power consumption of the system. WARRANTY, DELIVERY, AND LOCATION Both configurations include: • 6-month / 1,000-hour warranty, according to the offer conditions. • Delivery expected within 8 weeks from receipt of order. Machine can be viewed by appointment at: Via Campolongo, 81E – 35019 Onara di Tombolo (PD), Italy. B&B WATERJET ABRASIVE – OVER 17 YEARS OF EXPERIENCE We support you from the selection of the machine to after-sales service: installation, commissioning, operator training, maintenance, spare parts, and abrasive supply. Services are quoted based on the requirements and the machine's destination. Contact us specifying the desired configuration, the materials to be processed, and the installation location: we will prepare a customized offer.

Condition: good (used), Polar Mohr 92 XT Paper Guillotine The machine is in very good condition, fully serviced, and ready for production. Polar Mohr is the most highly regarded brand of paper guillotines; this model is their flagship product. Lrjdpfxoz S Uyle Ab Asu Technical specifications: Cutting width: 920 mm Stack height: 130 mm Programmable controller with a 15″ color touchscreen display Air table Safety light curtains (photocells) Chrome-plated table surface Ball-screw drive for the backgauge Optical cutting line Extended side tables Knife change system operated from the control panel Weight: 2000 kg Power supply: 380V Includes documentation, a tool kit, a jogger block, a spare knife, and one knife installed in the machine.

Condition: used, Year of construction: 1998, Wire-cut EDM machine Manufacturer: FANUC Model: ROBOCUT ALPHA-0C Year of manufacture: 1998 Control system: FANUC Series 16-W Technical details: Control system: FANUC Series 16-W X-axis: 320 mm Y-axis: 220 mm Z-axis: 180 mm U-axis: 120 mm V-axis: 120 mm Rapid traverse (X): 900 mm/min Rapid traverse (Y): 900 mm/min Rapid traverse (Z): 450 mm/min Rapid traverse (U): 450 mm/min Rapid traverse (V): 450 mm/min Max. workpiece weight: 250 kg Machine weight: approx. 1.5 t Lredpfx Ajzrh N Ueb Aou Connected load: 11 kVA Additional information: In our assessment, the machine is in good used condition and can be inspected under power by appointment. Accessories, tools, and clamping devices shown are included in the scope of delivery only if specified in the additional information. Subject to technical changes, errors, and prior sale.

Condition: used, Tapping machine, pipe thread cutter -without tools -Operating voltage: 220 volts -Dimensions: 830/530/H1080 mm Lsdpfxofyh Ebs Ab Ajru -Weight: 64 kg

Condition: reconditioned (used), Year of construction: 2002, Folding machine CAS 52 The machine has been overhauled with new folding rollers, rollers, alignment belt, and belts. It has its own control system with 4 automatic pockets. Roller settings are automatically calculated in the menu based on the product thickness and can also be adjusted manually via the menu. Synchronized output 60 jobs can be saved Machine manufactured in 2002 Original operating hours: 8.1 million – almost new condition Soundproofing renewed Lodo Ad R Ubjpfx Ab Aeru Original images after unloading 380 volts

Condition: good (used), thread cutting chuck, thread chuck, tapping chuck, milling tool, thread cutting attachment -Manufacturer: WMW ABW, thread cutting chuck holder MK2 2 pieces Lrjdpfx Aeuu U T Seb Aeu -Type: GB2a -Bore: 1x Ø8 mm / 1x Ø5 mm -Delivery/Price: complete -Transport dimensions: 220/130/H63 mm -Weight: 3.0 kg