Used Radial Drill for sale (5,456)

Condition: good (used), Year of construction: 1985, functionality: fully functional, drilling capacity: 32 mm, total length: 900 mm, quill stroke: 160 mm, total height: 1,800 mm, total width: 950 mm, throat depth: 630 mm, spindle speed (min.): 75 rpm, table length: 800 mm, spindle speed (max.): 2,800 rpm, table width: 500 mm, overall weight: 800 kg, power: 1 kW (1.36 HP), high-speed radial drilling machine Chedpfxox Dmn Hj Addof

Condition: good (used), Year of construction: 2000, functionality: fully functional, throat depth: 1,680 mm, total height: 31,600 mm, drilling capacity: 75 mm, total width: 11,000 mm, total length: 28,300 mm, spindle speed (max.): 1,600 rpm, spindle speed (min.): 10 rpm, quill stroke: 400 mm, spindle mount: MK 6, overall weight: 5,700 kg, height adjustment type: electric, power: 10 kW (13.60 HP), Radial drilling machine WRA 632 economic. Year of manufacture: 2000. Manufacturer: H. CEGIELSKI PL. Morse taper 6. Arm length 1600 mm, Max drilling diameter in steel – 65 mm, in cast iron 75 mm, Max tapping diameter in steel – M56, in cast iron M68, Spindle diameter 100 mm, Spindle travel 400 mm, Number of spindle speeds: 12, from 10–1600 rpm, Number of feeds: 8, from 1.14–2.04 mm/rev, Spindle reach from column: min 335 mm, max 1600 mm, Distance from spindle to base: min 390 mm, max 1680 mm, Base working surface 1760 x 1020 mm, Worktable (cube) dimensions 750 x 500 x 1200 mm, Overall dimensions (height x length x width) 3160 x 2830 x 1100 mm, Weight 5700 kg, Chedpetp Swwefx Addjf Total power requirement 10 kW.

Condition: reconditioned (used), Year of construction: 1980, Rapid radial drilling machine DONAU DR 23 Year of manufacture: 1980 Speed range: 70 rpm – 1550 rpm Arm reach: 920 mm Drilling capacity in steel: 30 mm Thread cutting device Mechanical feed Clamping table surface: 1050 mm x 400 mm Spindle taper: Morse taper 3 Csdpfx Adexuh Rksdjhf Machine lamp Coolant device Rotary table Ø 250 mm with index plates Machine vice 160 mm 5 height-adjustable machine shoes Various tools

Condition: used, Year of construction: 1987, Work table 750mm x 1200mm Arm travel 800mm Chsdpfx Adoxpfhvodef Tool holder MK 3 Drilling capacity 28mm in steel Thread cutting device Coolant system Documentation

Condition: excellent (used), Year of construction: 1979, The machine is in very good condition, equipped with a digital display, and immediately available. Radial drilling machine Maximum height: 2,800 mm Maximum radius: 3,500 mm Spindle: 130 mm Cjdpfx Aexq Rzqsddehf Maximum drilling diameter: 72 mm Table: 6,500 x 4,000 mm

Condition: excellent (used), functionality: fully functional, RADIAL DRILL BREDA Codpfoxf Hucsx Addshf 1250 x 55 MODEL R55 USED MACHINE INTERNAL CODE: SVR 319

Condition: used, Max. drilling diameter in steel: 63 mm Max. distance of spindle axis to casing guide: 2000 mm Cedpfx Adot Trbkedohf Vertical adjustment of the arm: 950 mm Spindle speed: 11-2000 /min. 5.5 kW Total machine weight: 6900 kg Including cooling system and drill cube - see photo.

Condition: good (used), Machines pictures 1 to 9 Gillardon price 9500,-€ Technical data: - Drilling capacity into solid steel ST 60 32 mm - Drilling capacity GG 25 40 mm - Thread cutting ST 60 M 27 - Drill spindle holder MK 4 - Quill stroke 150 mm - 12 drill spindle speeds 102 - 2000 rpm - 3 drilling feeds 0.1 - 0.3 mm - min. / max. distance spindle - table 310 / 610 mm - Drilling radius min / max 400 / 1200 mm - Table height 720 mm - Table size 1200 x 500 mm - Drive 400 V / 1.6 / 2.9 kW Chsdou Nm Nispfx Addsf - Space requirement approx. W 1200 x H 2800 x D 2300 mm - Weight approx. 1500 kg - with: - Thread cutting device - hydr. columns + boom clamping - Coolant device - Vertical T-slots on the rear side of the machine Machine 2 pictures 10 to 15 HKS 34 MT Price 16.500,-€ Drilling capacity 45mm Table size : 1200 x 560 mm drilling capacity 45mm Spindle holder MK 4 quill stroke 170mm Speed / steps 70-2000 rpm Feed rate / steps 0.1 0.2 0.3mm/rev Motor 2.9 KW

Condition: like new (used), Donau Donauflex 135 High-Speed Radial Drilling Machine Manufacturer: Donau Model: Donauflex 135 Year of manufacture: 2020 Condition: Very good, used but like new Codpsxcyz Rjfx Addjhf Available immediately from stock.

Condition: used, Year of construction: 1991, Work table 600mm x 1200mm Column travel 600mm Tool holder MK 3 Cedpexpfgljfx Addshf Drilling capacity 28mm in steel Tapping device Coolant system Documentation

Condition: used, functionality: fully functional, Maximum drilling diameter in steel mm 50 Spindle - MORSE 5 Maximum distance from spindle axis to column guide mm 1250 Cjdpfx Aoxk T Iajddehf Minimum distance from spindle axis to column guide mm 320 Vertical arm adjustment mm 875 Spindle stroke mm 310 Spindle speeds: number of steps 16 speed range min-1 28-2500 Main motor power kW 4 Total connected load kVA 6 Weight kg 4550 Manufacturer: Kovosvit, Sezimovo Ústí

Condition: good (used), Year of construction: 1979, functionality: fully functional, drilling capacity: 32 mm, overall weight: 1,870 kg, Drilling capacity into full 32 mm Tapping capacity into full M 32 mm Motor power 1.5 / 3 kW Tool holder MK 4 Quill stroke 170 mm Stroke approx. 400 mm Speeds : Range 1 , infinitely variable from 38 - 192 rpm Range 2 , infinitely variable from 119 - 596 rpm Csdpfxoxlk Adj Addehf Range 3 , infinitely variable from 400 - 2000 rpm

Condition: good (used), Year of construction: 1984, machine/vehicle number: 332, Offer 24130 Chedpfxetxzrws Addsf Technical data: - Drilling capacity into solid steel ST 60 32 mm - Drilling capacity GG 25 40 mm - Thread cutting ST 60 M 27 - Drill spindle holder MK 4 - Quill stroke 150 mm - 12 drill spindle speeds 102 - 2000 rpm - 3 drilling feeds 0.1 - 0.3 mm - min. / max. distance spindle - table 310 / 610 mm - Drilling radius min / max 380 / 1200 mm - Table height 720 mm - Table size 1200 x 500 mm - Drive 400 V / 2.0 / 2.4 kW - Space requirement approx. W 1200 x H 2800 x D 2300 mm - Weight approx. 1500 kg - with: - thread cutting device - hydr. columns + boom clamping - Coolant device - Vertical T-slots on the rear side of the machine

Condition: good (used), Used radial drill SASS Mod.TRM 2200 Excellent condition, fully functional. Cube supplied Maximum diameter drilling from solid cast iron 20-22 100 mm Maximum diameter drilling from solid steel R=60 80 mm Sliding quill spindle diameter 102 mm Spindle morse taper 6 Spindle vertical travel 500 mm Rotational speed 32 Spindle speed values with 50 Hz motor - rpm/1' 18 ÷ 1600 Automatic feeds Maximum reach from column edge to spindle axis 2230 mm Minimum and maximum drilling radius 660 ÷2505 mm Head displacement on arm 1845 mm Vertical arm displacement 1040 mm Column diameter 550 mm Column height with motor 3720 mm Base plate height 260 mm Base plate height 2490 x 1230 mm Spindle motor 11 HP Weight 9000 kg Cjdpfsikqz Sjx Addehf

Condition: used, Year of construction: 2009, Spindle head diameter: 75 mm Spindle taper: Morse 5 Spindle stroke: 350 mm Chedevwbccjpfx Addjf Min./max. overhang from the surface of the casing to the spindle axis: 1170/2070 mm Min./max. radius at the extreme positions of the spindle: 1370/2270 mm Min./max. distance of the spindle head in the vertical position (with the spindle retracted) from the floor: 305/1555 mm Min./max. distance of the spindle axis in the horizontal position from the floor: 295/2725 mm Vertical adjustment of the arms (stroke): 1250 mm Horizontal adjustment of the arms (travel): 900 mm Arm rotation: 360° Headstock rotation: 360° Headstock rotation from the horizontal position up/down: 90° / 90° Slide travel along the bed (extended): 2500 mm Shell diameter: 400 mm

Condition: like new (used), Year of construction: 2021, functionality: fully functional, drilling capacity: 40 mm, quill stroke: 200 mm, quill diameter: 80 mm, Machine design • Work table 1800 x 600 mm with 4T-slots • Boom travel 1050 mm • Drill spindle SK 40 with tool clamping device • Stepless speed programming • Stepless spindle feed via three-phase servo motor • 2 T-slots 18 mm on the machine base frame at the back • 2 T-slots 18 mm on the machine base frame on the left • Thread cutting device • Central lubrication • Coolant device • Machine light • CE marking • Safety device • USB interface Dimensions and travel paths Tool holder SK 40 Column diameter mm 195 Table dimensions mm 1800 x 600 Number of T-slots 4 Distance between T-slots mm 125 Spindle stroke (Z axis) mm 200 Column stroke (W axis) mm 410 Distance from lower edge of spindle - min mm 70 Top edge of table max. mm 680 Distance from bottom edge of spindle - min mm 970 Floor max. mm 1580 Drilling radius mm 540 - 1590 Work table height mm 900 Cutting values Drilling performance into solid material St 60  40 GG 22  50 Thread cutting St 60 M 36 GG 22 M 42 Main spindle drive AC motor, frequency-controlled kW 5.5 at 100% duty cycle. Speed range: min -1 15 - 2800 Torque Nm max. 250 constant from min -1 15 – 2000 Feed drives X-axis - AC - servo motor kW 0.25 Y-axis - AC - servo motor kW 0.25 Z-axis - AC - servo motor kW 4.50 W-axis - AC - servo motor kW 2.50 Rapid traverse speeds (X/Y/Z): m/min. 7.5 / 7.5 / 5 Rapid traverse speeds (W): m/min. 3 Feeds continuously variable mm/min 5 – 2000 Codpfx Aoxn A Spoddehf Accuracy Positioning accuracy X, Y axis to 1200 mm mm ± 0.075 Electrical data Operating voltage / frequency V / Hz 400 / 50 Control voltage V 24 Hydraulic unit for clamping kW 0.75 Total connected load kVA 13.0 Weight Danumeric 440 (without packaging) with table 1800 x 600 mm kg 2800 CNC control Axes: 4 (X, Y, Z, W), expandable Processor: 32-bit CPU Screen: TFT flat screen backlit, easy to read from all sides, 215 x 160 mm Position information: Cartesian or polar, absolute or incremental dimensions, Unit of measurement: mm or inch or in degrees Interpolation: 2 axes (X, Y) Technology database: tool management, tool suggestions according to machining type, material-dependent cutting data suggestions Tool management: max. 500 tools Sub-program technology: yes Machining cycles Standard software options: programming in dialog, 38 zero point shifts, turning and mirroring, teach-in for X, Y, Z, restart in the program with optional functions for targeted entry Zero point determination: cycles for determining zero points by manually probing the workpiece for: - any rectangular parts clamped - any round parts clamped - transfer of cast and burnt parts - angular position detection for round parts by probing reference edges or surfaces Test graphics Graphic display of drilling patterns Data interfaces USB

Condition: good (used), functionality: fully functional, Data --- Drilling capacity 40 mm / St. 60 --- Tapping capacity M 33 mm / steel --- Mounting MK 4 --- 18 speeds 35 - 1,800 rpm --- Cjdpfxoxdu H Ro Addshf 5 feeds 0.075 / 0.15 / 0.3 / 0.45 / 0.6 mm/rev --- ----

Condition: good (used), Year of construction: 1994, machine/vehicle number: 133120, Offer 24506 Technical data: Chjdpfswndydex Addjf - Drilling capacity in solid steel ST 60 35 mm - Drilling capacity GG 25 42 mm - Thread cutting ST 60 M 30 - Thread cutting GG 25 M 36 - Drill spindle mount MK 4 - Quill stroke 170 mm - Drill spindle speeds stepless 20 - 3200 rpm - Drill feeds stepless 0.02 - 0.70 mm/rev - Drilling radius approx. min. / max. 490 / 1240 mm - Swivel angle 330° - Table size 1200 x 620 mm - Table height 900 mm - Motorized height adjustment / drill column stroke 450 mm - Hydraulic column + jib clamping - T-slots vertical on the left machine side - Coolant device - Drive 400 V / 5.0 kW - Space required approx. W 1500 x H 2600 x D 1700 - 2500 mm - Weight approx. 2100 kg

Condition: refurbished (used), Year of construction: 1983, Work table 600mm x 1200mm Arm travel 600mm Tool holder MK 4 Drilling capacity 32mm in steel Thread cutting device Coolant system Electrics 24V control voltage Emergency stop 2-channel Guard on the drill Completely overhauled 2025 12 months warranty New paint RAL 7035/7031 Cedjmt Ed Ropfx Addjhf

Condition: used, Year of construction: 1990, machine/vehicle number: 2316-3, Lg.no. 10622 Technical data: Csdpeu Et Nbjfx Addshf - Drilling capacity into solid steel ST 60 28 mm - Drilling capacity GG 25 40 mm - Thread cutting ST 60 M 30 - Thread cutting GG 25 M 40 - Drill spindle holder MK 3 - Spindle diameter 50 mm - Quill stroke 150 mm - 18 drilling spindle speeds 45 - 2240 rpm - 4 drilling feeds 0.1 - 0.45 mm - min. / max. distance spindle - table 300 / 700 mm - Drilling radius min / max 305 / 1005 mm - Table height 820 mm - Table size 1200 x 600 mm - Drive 400 V / 6 kW - Space requirement approx. W 1300 x H 2800 x D 2300 mm - Weight approx. 1500 kg - with: - Thread cutting device - hydr. columns + boom clamping - Coolant device - Vertical T-slots on the left side of the machine

Condition: refurbished (used), Year of construction: 1976, Work table 500mm x 1200mm Arm travel distance 600mm Tool holder MK 4 Drilling capacity 32mm in steel Cedpfxewnn S Rj Addshf Thread cutting device Coolant device Electronics 24V control voltage Emergency stop 2-channel Safety device on the drill Completely overhauled in 2025 12 months warranty New paint RAL 7035/7031

Condition: good (used), Year of construction: 1992, machine/vehicle number: 2355-2, Offer 24416 Technical data: - Drilling capacity into solid steel ST 60 28 mm - Drilling capacity GG 25 40 mm - Thread cutting ST 60 M 30 - Thread cutting GG 25 M 40 - Drill spindle holder MK 3 - Spindle diameter 50 mm - Quill stroke 150 mm - 18 drilling spindle speeds 45 - 2240 rpm - 4 drilling feeds 0.1 - 0.45 mm - min. / max. distance spindle - table 300 / 700 mm - Drilling radius min / max 305 / 1005 mm - Table height 820 mm Chjdpfx Adoufw S Rsdjf - Table size 1200 x 600 mm - Drive 400 V / 6 kW - Space requirement approx. W 1300 x H 2500 x D 2300 mm - Weight approx. 1500 kg - with: - thread cutting device - hydr. columns + boom clamping - Coolant device - Vertical T-slots on the left side of the machine

Condition: refurbished (used), Year of construction: 1996, functionality: fully functional, drilling capacity: 40 mm, quill stroke: 200 mm, quill diameter: 80 mm, Dimensions and travel paths Tool holder SK 40 Table dimensions mm 4000 x 800 Number of T-slots 6 Distance between T-slots mm 140 Distance between spindle bottom edge min. mm 140 Table top edge max. mm 740 Drilling radius min mm 540 max. mm 1590 U-axis travel path mm 2600 Y-axis travel path mm 1050 Quill stroke (Z-axis) mm 200 Column stroke (W-axis) mm 400 Cutting values Drilling capacity into solid material St 60 mm 40 GG 22 mm 50 Thread cutting St 60 M 36 GG 22 M 42 Main spindle drive AC motor, frequency-controlled kW 5.5 at 100% duty cycle. Speed range: min -1 15 - 2800 Torque Nm max. 250 constant from min -1 15 - 200 Feed drives X-axis - AC servo motor kW 0.25 Y-axis - AC servo motor kW 0.25 Z-axis - AC servo motor kW 4.50 W-axis - AC servo motor kW 2.50 U-axis - AC servo motor kW 2.50 Rapid traverse speeds (X/Y/Z): m/min. 7.5 / 7.5 / 5 Rapid traverse speeds (U/W): m/min. 7.5 / 3 Feed rates infinitely variable mm/min. 5 - 2000 Feed force N 12000 Accuracy Positioning accuracy X, Y axis up to 1200 mm mm ± 0.075 Repeatability X, Y axis mm ± 0.03 Positioning accuracy Z axis mm ± 0.05 Repeatability Z axis mm ± 0.03 Positioning accuracy W axis mm ± 0.05 Repeatability W axis mm ± 0.03 Electrical data Operating voltage / frequency V / Hz 400 / 50 Control voltage V 24 Total connected load kVA 13.0 CNC control Axes: 5 (X, Y, Z, W, U), expandable Screen: TFT flat screen backlit, easy to read from all sides Position information: Cartesian or polar, dimensions absolute or incremental, Unit of measurement: mm or inch or in degrees Interpolation: 2 axes (X, Y) Technology database: tool management, tool suggestions according to machining type, cutting data suggestions depending on material Tool management: max. 500 tools Sub-program technology: yes Machining cycles: cycles for centering, drilling, thread cutting, reaming, countersinking and boring, freely programmable cycle for special tools, dwell time possible for each cycle Chip breaking / chip removal: possible for drilling cycle Drilling patterns: row of holes, circle of holes, matrix Basic software: programming in dialog, 38 zero point shifts, turning and mirroring, teach-in for X, Y, Z, restart in the program with optional functions for targeted entry Zero point determination: cycles for determining zero points by manually touching the workpiece for: - any clamped right-angled parts - any clamped round parts - mediation of cast and burnt parts - Angular position detection for round parts by touching - reference edges or surfaces Data interfaces USB interface Painting (new painting) Standard painting, two-component textured paint Machine upper part light gray RAL 7035 Cjdpfx Adov If T Tsdshf Machine lower part signal blue RAL 5005 Documentation Operating and programming instructions Electronics circuit diagram Spare parts drawings Test report for mechanics, electrics and safety equipment

Condition: good (used), Year of construction: 2000, functionality: fully functional, drilling capacity: 40 mm, quill stroke: 200 mm, quill diameter: 80 mm, Machine design - Work table 1800 x 600 mm with 4T-slots - Boom travel 1050 mm - SK 40 drilling spindle with tool clamping device - Infinitely variable speed programming - Infinitely variable quill feed via three-phase servo motor - 2 T-slots 18 mm on the machine base at the rear - 2 T-slots 18 mm on the left machine base frame - Thread cutting device - Central lubrication - Coolant device - Machine light - CE marking - Safety device - USB interface Dimensions and travels Tool holder SK 40 Column diameter mm 195 Table dimensions mm 1800 x 600 Number of T-slots 4 Distance between T-slots mm 125 Quill stroke (Z-axis) mm 200 Column stroke (W-axis) mm 410 Distance spindle bottom edge - min mm 70 Table top edge max. mm 680 Distance spindle bottom edge - min mm 970 Floor max. mm 1580 Drilling radius mm 540 - 1590 Worktable height mm 900 Cutting values Drilling capacity into solid St 60  40 GG 22  50 Thread cutting St 60 M 36 GG 22 M 42 Main spindle drive AC motor, frequency-controlled kW 5.5 at 100 % duty cycle. Speed range: min -1 15 - 2800 Torque Nm max. 250 constant from min -1 15 - 2000 Feed drives X-axis - AC - servo motor kW 0.25 Y-axis - AC - servo motor kW 0.25 Z-axis - AC - servo motor kW 4.50 W-axis - AC - servo motor kW 2.50 Rapid traverse speeds (X/Y/Z): m/min. 7.5 / 7.5 / 5 Rapid traverse speeds (W): m/min. 3 Feed rates stepless mm/min 5 - 2000 Accuracy Positioning accuracy X-, Y-axis to 1200 mm mm ± 0.075 Electrical data Operating voltage / frequency V / Hz 400 / 50 Control voltage V 24 Hydraulic unit for clamping kW 0.75 Total connected load kVA 13.0 Weight Danumeric 440 (without packaging) with table 1800 x 600 mm kg 2800 CNC control Axes: 4 (X, Y, Z, W), expandable Processor: 32-bit CPU Screen: TFT flat screen, backlit, easy to read from all sides legible from all sides, 215 x 160 mm Position information: Cartesian or polar, absolute or incremental measurements, Unit of measurement: mm or inch or in degrees Interpolation: 2 axes (X, Y) Technology database: tool management, tool suggestions according to machining type, material-dependent cutting data suggestions Cedpfju Aa I Sjx Addshf Tool management: max. 500 tools Subroutine technology: yes Machining cycles Standard software options: Programming in dialog, 38 zero offsets, rotation and mirroring, teach-in for X, Y, Z, restart in program with selection functions for targeted entry Zero point determination: Cycles for determining zero points by manually probing the workpiece for by manually probing the workpiece for: - any clamped rectangular parts - any clamped round parts - Mediation of cast and flame-cut parts - Angular position detection for round parts by touching reference edges or surfaces Test graphics Graphic display of drilling patterns Data interfaces USB

Condition: refurbished (used), Year of construction: 1997, functionality: fully functional, drilling capacity: 40 mm, quill stroke: 200 mm, quill diameter: 80 mm, Machine design • Work table 1800 x 600 mm with 4T-slots • Boom travel 1050 mm • Drill spindle SK 40 with tool clamping device • Stepless speed programming • Stepless spindle feed via three-phase servo motor • 2 T-slots 18 mm on the machine base frame at the back • 2 T-slots 18 mm on the machine base frame on the left • Thread cutting device • Central lubrication • Coolant device • Machine light • CE marking • Safety device • USB interface Dimensions and travel paths Tool holder SK 40 Column diameter mm 195 Table dimensions mm 1800 x 600 Number of T-slots 4 Distance between T-slots mm 125 Spindle stroke (Z axis) mm 200 Column stroke (W axis) mm 410 Distance from lower edge of spindle - min mm 70 Top edge of table max. mm 680 Distance from bottom edge of spindle - min mm 970 Floor max. mm 1580 Drilling radius mm 540 - 1590 Work table height mm 900 Cutting values Drilling performance into solid material St 60  40 GG 22  50 Thread cutting St 60 M 36 GG 22 M 42 Main spindle drive AC motor, frequency-controlled kW 5.5 at 100% duty cycle. Speed range: min -1 15 - 2800 Torque Nm max. 250 constant from min -1 15 – 2000 Feed drives X-axis - AC - servo motor kW 0.25 Y-axis - AC - servo motor kW 0.25 Z-axis - AC - servo motor kW 4.50 W-axis - AC - servo motor kW 2.50 Rapid traverse speeds (X/Y/Z): m/min. 7.5 / 7.5 / 5 Rapid traverse speeds (W): m/min. 3 Feeds continuously variable mm/min 5 – 2000 Accuracy Positioning accuracy X, Y axis to 1200 mm mm ± 0.075 Electrical data Operating voltage / frequency V / Hz 400 / 50 Control voltage V 24 Hydraulic unit for clamping kW 0.75 Total connected load kVA 13.0 Weight Danumeric 440 (without packaging) with table 1800 x 600 mm kg 2800 CNC control Axes: 4 (X, Y, Z, W), expandable Processor: 32-bit CPU Screen: TFT flat screen backlit, easy to read from all sides, 215 x 160 mm Position information: Cartesian or polar, absolute or incremental dimensions, Unit of measurement: mm or inch or in degrees Interpolation: 2 axes (X, Y) Chedpevv Spkofx Addof Technology database: tool management, tool suggestions according to machining type, material-dependent cutting data suggestions Tool management: max. 500 tools Sub-program technology: yes Machining cycles Standard software options: programming in dialog, 38 zero point shifts, turning and mirroring, teach-in for X, Y, Z, restart in the program with optional functions for targeted entry Zero point determination: cycles for determining zero points by manually probing the workpiece for: - any rectangular parts clamped - any round parts clamped - transfer of cast and burnt parts - angular position detection for round parts by probing reference edges or surfaces Test graphics Graphic display of drilling patterns Data interfaces USB