Used Drill Chuck Mk3 for sale (8,342)

Condition: new, Year of construction: 2026, functionality: fully functional, /// DESCRIPTION Multi-functional CNC drilling machine is able to drill from 6 sides. Independent top grooving, 5.5kw main spindle of 4-slot tool changing magzine, and 1 drilling block on top, one drilling block and one main spindle on bottom meet different process requests and gives batch-size-one production max flexibility; Software is open port, support most formats in market. Compact design, save space /// TECHINICAL SPECS Total power - 21.07 KW Machine dimensions - 3962× 3010× 2320mm Power supply - 380 V/50 Hz Air supply 0.6-0.7 MPa SYNTEC control system Panel size Length 200-2,800 mm Width 30-1,220 mm Thickness 10-60 mm Maximum travel speed X-axis/U-axis - 135 m/min Y axis - 75 m/min Z axis - 30 m/min V axis (push) - 30 m/min Drilling blocks Top 1; Bottom 1 Number of vertical drills (top) 1 Number of horizontal holes (top) X: 2*2+ Y: 2*2 Number of vertical drills (lower) 9 Maximum drill diameter Φ35 mm Distance between holes 3 Rotation speed 5000 rpm Shaft diameter Φ10 mm Drill length 7 Main shaft Upper - 1*5.5 kW ER32 ATC4 18000 rpm Lower - 1*3.5 kW er25 18000 rpm Rcedpfeyi Avfsx Abpsf Saw blade Power 1.7 kW Dimensions Ф 100* Ф 22* δ 4Center distance 6500 mm Conveying capacity approx. 0.2 t/hour Conveying speed approx. 0.5 m/sec Width of belt 500 mm Motor power 1.5 kW Operation voltage 400 V Frequency 50 Hz

Condition: good (used), Year of construction: 1999, machine/vehicle number: 20403, Offer 25170 Technical Data: - Drilling capacity in steel ST 60 40 mm - Drilling ability in steel ST 60 50 mm - Drill spindle mount MK 4 - Drill spindle stroke 180 mm - Drill spindle speeds steplessly adjustable with gear stage - Stage 1 60 - 210 rpm - Stage 2 210 - 765 rpm - Stage 3 120 - 420 rpm - Stage 4 420 - 1530 rpm - Throat 330 mm - 3 feeds 0.1 - 0.2 - 0.3 U/min - Table with 2 T-slots 720 x 360 mm - Height adjustable via rack with hand crank - Max. distance table – drill spindle ca. 780 mm - Max. distance machined base plate - drill spindle 1250 mm - Coolant device - Lighting - Machine vise - Various 10 pcs HSS drills Rjdpewncaijfx Abpjcf - Drive 400 V / 2.6 / 4 kW - Space requirement approx. W 720 x H 2050 x D 1150 mm - Weight approx. 350 kg

Condition: good (used), Year of construction: 1998, machine/vehicle number: 3815-130-3235, Offer 25380 Technical Data: - Drilling capacity in steel ST 60: 40 mm - Maximum drilling capacity in steel ST 60: 50 mm - Tapping capacity in steel ST 60: up to M 42 - Spindle taper: MK 4 - Spindle stroke: 200 mm - Spindle speeds steplessly adjustable: 40 – 1100 rpm - Right and left-hand rotation - 3 automatic feeds: 0.1; 0.16; 0.25 mm/rev - Throat depth: 350 mm - Max. distance spindle – table / baseplate: 790 / 1210 mm - Table with 2 T-slots: 630 x 540 mm - Table height adjustable via rack with hand crank - Drive: 400 V / 1.6 / 2.9 kW - Required floor space approx.: W 600 x H 2050 x D 980 mm Rcsdpfexr Ayhex Abpef - Weight approx.: 650 kg - Includes: - Tapping device - Quick-action drill chuck 1–13 mm - Emergency stop button - Work light - Coolant device

Condition: good (used), Year of construction: 1990, machine/vehicle number: 328501, Offer 25366 Technical Data: - Drilling capacity: 25 mm Rjdpfxsxu U Sue Abpecf - Spindle taper: MT 3 - Spindle speeds: 100 / 205 / 345 / 440 rpm and 695 / 885 / 1450 / 2900 rpm - Spindle stroke: 130 mm - Spindle overhang: 260 mm - Coordinate table with 3 T-slots: 580 x 240 mm - Table travel X-axis: 415 mm - Table travel Y-axis: 155 mm - Drive: 400 V / 0.75 / 0.9 kW - Required space: approx. W 900 x H 1800 x D 700 mm - Weight: approx. 270 kg - Machine vice

Condition: good (used), Year of construction: 2006, machine/vehicle number: 860027, Offer 24331 Technical data: Redpfx Abou Aq Amepecf - Table surface 1700 x 550 mm - manual travel X / Y 1300 x 500 mm - MAXION drilling machine, type: BT 18 STP - Drilling capacity up to 18 mm - Tapping device up to M 16 - Drill spindle holder MK 2 - Drill spindle stroke with fine drilling depth adjustment 76 mm - Pneumatic feed unit PV 12 - throat depth 670 mm - Spindle speeds 100 - 1800 rpm - 200 - 3600 rpm - mot. Stroke of the drilling unit - mot. Table clamping x + y - Minimum quantities Lubrication - Pneumatic connection 6 bar - Connection 400 V - Space requirement approx. W 1750 x H 1600 x D 1000 mm - Weight approx. 1200 kg

Condition: good (used), Year of construction: 1975, machine/vehicle number: 620421, Offer 24461 Technical data: - Drilling capacity in steel ST 60 30 mm - Drill spindle holder MK 3 - Drill spindle stroke 160 mm - 9 drill spindle speeds 90 - 1450 rpm - throat depth 300 mm - Table with 2 T-slots + attached machine vice - Table dimensions 400 x 450 mm - Max. distance table - drill spindle 660 mm - Height adjustable via rack and pinion with hand crank - Drive 400 V / 1.2 kW - Space requirement approx. W 600 x H 2100 x D 850 mm - Weight approx. 300 kg - with: - Drill chuck - 10 pcs. HSS drill bits 8 - 20 mm Rodpfx Aju Atnlebpecf

Condition: excellent (used), bore depth 500 mm Rsdsxx A D Tjpfx Abpocf spindle speed: 1

Condition: excellent (used), Year of construction: 2005, functionality: fully functional, type of input current: three-phase, total length: 1,300 mm, total height: 2,000 mm, table width: 255 mm, input voltage: 400 V, total width: 1,350 mm, table length: 800 mm, drilling capacity: 40 mm, Equipment: documentation/manual, SERRMAC TCS 40 TC VR DA Drilling and Milling Machine Square column and prismatic guides. Rcedpfx Aozkkm Hobpsf Complete with: Automatic feed. Variable speed with delay. Tapping system via reversing gearbox. Lubrication system. Motorized rapid vertical feed for table and cross slide. Vice. Drilling in steel, diameter 40 mm. Tapping M26. CM 4 spindle connection. Spindle travel 145 mm. Cross slide table 800 x 255 mm. Variable speed with delay 64-2350 rpm. Motor 2.2 kW. Three-phase power supply 400 V. Weight 780 kg.

Condition: used, number of spindles 4 bore capacity in steel (diameter) 23 mm bore stroke 150 mm total power requirement kW weight of the machine ca. t dimensions of the machine ca. m Rcsdpfst Hw U Nox Abpsf

Condition: used, Year of construction: 1984, machine/vehicle number: 106, 4-Spindel-Papierbohrmaschine - 4-head spindle paper drilling Josef Foellmer IRAM 200Year ca. 1984 - Serial-No. 106 Drilling area 3 - 10 mm Drilling distance variabel 36 - 430 mm Online-Video-Inspection by Skype-Video We would be very pleased with your visit - more machines on Stock Rsdpeh Axadjfx Abpocf Available Immediately - Can be inspect On Stock Emskirchen / Nürnberg - Can be test

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 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 Redpfx Abownn S Rjpecf

Condition: used, Kolb radial drilling machine MK 5 boom 1500 mm with clamping table Redpfx Ajulz Iwobpjcf

Condition: good (used), Year of construction: 1989, bore capacity in steel (diameter) 30 mm throat 300 mm bore stroke 150 mm cross-moving table 600 x 180 total power requirement 1,5 kW weight of the machine ca. 1,1 t Rodpfszmix Hsx Abpecf dimensions of the machine ca. 1,0 x 1,0 x 2,2 m

Condition: used, Year of construction: 1988, Radial drilling machine Manufacturer: Tai Pin Type: TPR 1230 Year of manufacture: 1988 Drilling capacity in steel: Ø 42 mm Drilling capacity in cast iron: Ø 55 mm Thread cutting (steel/cast iron): M25 / M38 Overhang (column to spindle center): 330 – 1,230 mm Spindle stock travel: 880 mm Column diameter: 300 mm Tool holder: MK 4 (Morse taper 4) Quill stroke (spindle stroke): 270 mm Spindle speeds: 12 steps, 37 – 1,253 rpm (at 50 Hz) Automatic feeds: 3 steps (0.05 / 0.09 / 0.15 mm/rev) Distance spindle – base plate: 467 – 1,360 mm Rsdpoznvibefx Abpocf Outrigger height adjustment: 620 mm 23726

Condition: used, Year of construction: 2026, The very efficient Cormak 32 column drill is an ideal solution for professional workshops and small-scale production. Equipped with a 1500W two-speed motor with a rotation direction switch for right and left. It has a table height adjustment using a toothed rack. The work table tilts from 0-45 degrees to the left and right. Additionally, the Cormak 32 drill is equipped with a gravity cooling system. The set includes a 150 mm vice and a drill chuck. Technical data Maximum drilling diameter 32 mm Grip capacity 16 mm Spindle to column distance 254 mm Maximum spindle stroke 120 mm MK4 spindle mount Maximum distance of the table from the spindle 595 mm Redpfx Ajzqr Eksbpjcf The distance between the pin and the column is 260 mm Maximum distance of the base from the spindle holder 1075 mm Table dimensions 475x425 mm Column diameter 92 mm Motor power 1.5 kW 400V power supply Gravity cooling system Overall dimensions 1670 x 760 x 475 mm Net weight 144 kg Spindle speed range Motor speed Spindle speed (min-1) 1400 min-1 120 200 250 360 400 450 950 1280 1520 1840 2440 3480 700 min-1 60 100 120 180 200 220 470 640 760 920 1120 1740 Standard equipment 1500W two-speed motor Left and right rotations DTR in Polish CE declaration Gravity cooling system Optional equipment feeder PLEASE NOTE! This machine is a returned item with damaged packaging. NO WARRANTY!

Condition: new, Year of construction: 2026, The XZ7550ZB milling and drilling machine is the perfect tool for professionals. With a simple, uncomplicated design, this machine guarantees uninterrupted work for a long period of time. With a vertical head and horizontal spindle, the XZ7550ZB offers a wide range of machining options. The ISO 40 tool clamping cone ensures robust tool clamping, while the spindle auto-feed further increases productivity and efficiency. X- and Y-axis working feeds and fast Z-axis positioning feeds enable precise machining, while the extendable vertical head spindle facilitates access to workpieces. Mechanical feed in 3 ranges and an automatic threading option add flexibility. The vertical head swivelling from 0-90° and the upper extension and swivelling bar add extra functionality and precision. Machine description AUTOMATIC ELECTRIC FEED OF THE TABLE IN THE Y AXIS AUTOMATIC MECHANICAL FEED OF THE TABLE IN THE X AXIS AUTOMATIC SPINDLE FEED HEAVY, STABLE CAST IRON CASTING VERY PRECISELY MANUFACTURED SOLID CROSS TABLE WITH PRECISION GROUND SURFACE DOVETAIL GUIDES IN ALL 3 AXES QUIET RUNNING THANKS TO GROUND GEARS LEFT AND RIGHT ROTATION SWIVEL HEAD +/- 90° Technical data Max. drilling diameter 50 mm Max. horizontal milling length 100 mm Max. vertical milling diameter 25 mm Max. threading diameter M16 Max. boring diameter 120 mm Spindle taper ISO 40 50Hz spindle speed range and number (rpm) 72-1800 (8) Vertical, 60-1350 Horizontal (9) Distance between spindle and column surface 200-700 mm Distance between spindle and table 100-480 mm Distance between spindle axis and table 0-380 mm Number, width and spacing of T-slots 5 / 14 mm/44 mm Spindle travel 120 mm Table size 1000x240 mm Table travel 600x230 mm Feed of table 24-720 mm/min (8 speeds) Spindle feed 0.015; 0.08; 0.25 mm/rev. Motor (vertical/horizontal) 1.5 kW/1.5 kW Overall dimensions 1120x1060x2035 mm Weight 970 kg Scope of delivery Digital readout for 3 axes SINO Rjdpfoud Ic Dox Abpecf ISO 40 Morse bushings Drill chuck B16 CE declaration of conformity Machine vice L - 160 mm Milling machine spindle with a set of collets for finger joint cutters Horizontal spindle support / ocular / Milling arbor long. Basic tools 24 V halogen lighting system Cooling system

Condition: excellent (used), Boring bar Bar diameter: 180 mm Rcodpjum Uzgjfx Abpjf Overall length: 2500 mm Weight: 920 kg Siegfried Volz Machine Tools Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel

Condition: new, Year of construction: 2026, The CORMAK WP400 self-centring 3-jaw pipe chuck is a high-quality accessory designed for use with welding positioners and welding rotators. It enables quick and stable clamping of cylindrical or hexagonal workpieces with diameters ranging from 120 to 380 mm. Thanks to its robust design and high clamping force, the chuck ensures reliability and precision essential for automatic and semi-automatic circumferential welding processes. Main advantages of the WP400 chuck Wide clamping range – allows clamping of workpieces with diameters from 120 to 380 mm, ensuring versatility for both series and single-piece production. Self-centring 3-jaw mechanism – guarantees fast and accurate alignment of the workpiece along the rotator axis. High clamping force – 350 kg – enables safe clamping of heavy components during dynamic rotation. Compatible with welding positioners – perfectly matches welding rotators and other welding support equipment, allowing full utilisation of their capabilities. Stable and durable design – engineered for long-term use in demanding industrial conditions. Design and technology Redpfjycqpyex Abpjcf The WP400 model features a precise, mechanically synchronised clamping system that ensures the workpiece is always perfectly centred on the rotational axis. The three independently moving jaws are made of hardened steel, resistant to wear and deformation. A large through-hole of ⌀170 mm allows for the passage of tubular workpieces, while the load capacity of 240 kg provides safe handling of heavy components. Precision and performance The WP400 chuck minimises setup time, increasing overall workstation efficiency. The self-centring system eliminates positioning errors and improves the quality of circumferential welds. Its rigid construction ensures stability during automatic or semi-automatic welding cycles, even under high loads. Applications The WP400 chuck is designed for industrial facilities using welding positioners, welding rotators, and other devices supporting welding processes. It is ideal for clamping pipes, sleeves, flanges, and other components requiring rotational welding. With its high clamping force and load capacity, the WP400 is suitable for both light and heavy-duty production environments. Technical parameters Model WP-400 Max clamping force 350 kg Max load capacity 240 kg Through-hole diameter ⌀ 170 mm Clamping range ⌀ 120–380 mm

Condition: new, Year of construction: 2026, CORMAK ZS-40HS Pillar Drill The CORMAK ZS-40HS is an advanced pillar drilling machine for metalworking, designed for intensive industrial use. Featuring a hardened gear transmission system, large drilling capacity, and tapping capability up to M32, this model is a reliable solution for manufacturing plants, metalworking shops, and maintenance departments. Key Advantages Large drilling capacity – up to 40 mm – suitable for machining a wide range of materials and thicknesses. Tapping function with automatic spindle reversal – enables fast and efficient thread cutting up to M32. Precision oil-bath gearbox – 6 spindle speeds provide optimal speed adjustment (95–1600 rpm) for various machining operations. Rotating head with height adjustment – increases flexibility and allows drilling at different angles. Rigid 115 mm diameter column – ensures excellent stability even under maximum load. Large worktable with height adjustment and vise mounting capability – facilitates machining of large workpieces. Construction and Technology The CORMAK ZS-40HS industrial drill press is built with heavy-duty cast iron components and a reinforced 115 mm diameter column, ensuring maximum rigidity and vibration reduction. The transmission system is based on hardened, precision-ground gears, providing exceptional durability and reliable power transmission. The 120 mm spindle travel and MT4 spindle taper allow the use of a wide range of drill bits and tapping tools. Precision and Performance The CORMAK ZS-40HS metalworking pillar drill offers high drilling accuracy and repeatability thanks to its mechanical gearbox and precision handwheel with depth scale. Flexible adjustment of both the drilling head and worktable height allows the machine setup to be tailored to specific machining requirements. The powerful motor (1.1 kW continuous duty S1, 1.6 kW intermittent duty S6) ensures efficient operation even when drilling large diameters. Applications The CORMAK ZS-40HS column drilling machine is designed for industrial applications, particularly in: Manufacturing and processing plants Rcedsriduxopfx Abpsf Metalworking workshops Maintenance departments Tool rooms Technical schools and training centers Standard Equipment 16 mm drill chuck MT4 arbor MT3 and MT2 reducing sleeves Drift key for arbor removal Worktable with mounting T-slots Handwheel with depth scale for drilling depth control Technical Specifications Parameter Value Maximum drilling capacity 40 mm Maximum tapping capacity M32 Spindle taper MT4 Spindle travel 120 mm Column diameter 115 mm Spindle speed range 95–1600 rpm Number of speeds 6 Worktable dimensions 575 × 354 mm Base dimensions 385 × 330 mm Motor power S1: 1.1 kW / S6: 1.6 kW Power supply 400 V / 50 Hz Overall height 2100 mm Weight 350 kg

Condition: used, Univ. universal milling machine DECKEL, Type FP 1 Machine No. 28317, Year of manufacture approx. 1960 Travel distances: X: 245 mm, Y: 150 mm, Z: 340 mm Rcjdpfx Ajiy Ekvsbpef Table size: 600 x 210 mm Spindle mount, horizontal: MK 4 - S20 x 2 Spindle speed, vertical: 95-1900 rpm, 12 steps Spindle speed, horizontal: 60-1200 rpm, 12 steps Motor power: 0.8 and 1.1 kW, pole-changing Power connection: 380 Volt, 50 Hz - Spindle speed controlled via 2 motor speeds and 6 gear stages - Feed in the X and Z axes - Coolant system with mechanical pump in the machine base - Quill travel on the vertical milling head: 60 mm - Vertical milling head swivels +/- 90° - Metal substructure made of angle iron with machine feet Space requirement L x W x H: 1100 x 900 x 1650 mm Weight: 650 kg Good condition

Condition: new, Year of construction: 2026, A large and stable radial drilling machine with a large range of revolutions which ensures precise and fast machining. Machine features Large weight and sturdy design ensure stability and vibration-free operation Cube table provides adjustability and easy fixture of workpiece Control panel located at the front of the machine for improved convenience Ground column surface provides easy, precise arm travel Machine equipped with manual head and column arm limiter Large speed range for accurate and quick machining Technical data Maximum drilling diameter 35 mm (cast iron); 30 mm (steel) Distance from spindle to base 360–1300 mm Distance from spindle axis to column surface 260–1300 mm Spindle extension 200 mm Spindle taper MK4 Spindle speed ranges (6): 75, 130, 240, 380, 660, 1200 rpm Spindle feed ranges (3) 0.10; 0.16; 0.25 mm/turn Rodpfsi D Da Asx Abpscf Vertical arm travel speed 1.3 m/min Arm rotation 360° Main motor power 2.2 kW Lifting motor power 0.75 kW Worktable dimensions 510×380×305 mm Machine dimensions 800×1800×2150 mm Weight 1400 kg Default equipment B16 (3-16 mm) Drilling chuck B16/MK4 Drilling chuck mandrel MK4/MK3 reduction Wedge for taper removal The price is a net price. Price does not include shipping costs. For more information, please contact us by phone or e-mail. We invite you to familiarize yourself with the offer on our website.

Condition: new, Year of construction: 2026, The drilling and milling machine can be used for drilling, reaming and expanding holes up to 45/40 mm in cast iron and threading screws up to M12 mm, milling up to 80 mm wide, and notching up to 22 mm. It is also suitable for cutting and face milling. The machine is available from stock. Machine characteristics The machine can be used for drilling, reaming and expanding holes up to 45/40 mm in cast iron and threading screws up to M12 mm, milling up to 80 mm wide, and notching up to 22 mm. It is also suitable for cutting and face milling. Various accessories can be fitted to it. HEAVY, STABLE CAST IRON THE HEIGHT OF THE ROUTER IS ADJUSTABLE ON THE SLIDE AND NOT ON THE COLUMN SOLID CROSS TABLE FOR THE MILLING/DRILLING MACHINE WITH PRECISION GROUND SURFACE DOVETAIL GUIDES, QUIET RUNNING THANKS TO GROUND GEARS LEFT AND RIGHT ROTATION OPTIONAL HEAD +/- 90 degrees ADJUSTABLE HEAD HEIGHT Machine base available as an optional extra - 200€ Technical data MAXIMUM DRILLING SIZE 45 mm MAXIMUM FACE DRILLING 80 mm MAXIMUM FACE MILLING 28 mm MAXIMUM THREADING 12 mm SPINDLE PASSAGE Rcodpfsud H Huox Abpof 120 mm SPINDLE TAPER MT4 SPINDLE SPEED (6 MOTOR SPEEDS 1400r/min ) 95,170,280,540,960,1600min-1 MAX. DISTANCE FROM SPINDLE TIP TO TABLE 475 mm DISTANCE FROM SPINDLE TO COLUMN SURFACE 260 mm WORKING TABLE DIMENSIONS 820 x 240 mm TABLE TRAVEL 550 x 170 mm MOTOR 1,1kW / 1,5hp Voltage (two options to choose from) 400V (three-phase motor) PACKING DIMENSIONS 1140 x 800 x 1040 mm NET WEIGHT 270 kg Available accessories MK4/B18 drill chuck shank handy tools Drill chuck 3-16 mm/B18 reduction sleeve MK4/MK3 reduction sleeve MK3/MK2 instruction manual in Polish

Condition: used, Year of construction: 2012, power: 20 kW (27.19 HP), working width: 1,300 mm, number of spindles: 82, plate height: 90 mm, working length: 3,000 mm, The pick-up deadlines specified in the General Terms and Conditions apply. The absolute latest pick-up date is August 31, 2026! TECHNICAL DETAILS Working area, X-axis: 3,000 mm Working area, Y-axis: 1,300 mm Maximum panel thickness: 90 mm Total number of drilling spindles: 82 Drilling units, Unit 1 (top) Spindles for vertical drilling: 31 Spindles for horizontal drilling in the X direction: 8 Spindles for horizontal drilling in the Y direction: 2 Drilling units, Unit 2 (bottom) Spindles for vertical drilling: 31 Spindles for horizontal drilling in the X direction: 8 Spindles for horizontal drilling in the Y direction: 2 Milling spindles Number of milling spindles: 2 Milling spindles, Unit 1 (top) Number of controlled axes: 3 Motor power: 4.5 kW Milling spindles, Unit 2 (bottom) Number of controlled axes: 3 Motor power: 4.5 kW Grooving units Number of grooving units: 2 Grooving units, Unit 1 (top) Unit: Fixed for creating channels in the X direction Max. tool diameter: 160 mm Motor power: 3.5 kW Rcjdpozf Ibdjfx Abpof Grooving units, Unit 2 (bottom) Unit: Fixed for creating channels in the X direction Max. tool diameter: 160 mm Motor power: 3.5 kW MACHINE DETAILS Total installed power: 20 kW Machine programming software: BIESSEWORKS EQUIPMENT Automatic panel stacking system with motorized transfer Barcode scanner (manufacturer: SICK) CE marking Protective grating Safety mats The machine is sold and delivered in its actual and legal condition (“as is, where is”) based on photographic documentation and technical/commercial documents with a descriptive nature. The buyer has the right to inspect the goods before pick-up and assumes responsibility for the installation, securing, and use of the machine at the destination. External reference: 8565

Condition: used, machine/vehicle number: 006106, Max. panel width: 700 mm Redpfxsy Nkmms Abpscf Max. panel length: 2500 mm No of Top Units: 1 Positioning of Units by NC: yes Lateral horizontal groups: yes

Condition: used, machine/vehicle number: 007869, Max. panel width: 3200 mm Max. panel length: 800 mm No of Bottom Units: 5 Rjdpfx Abswimzyspocf Lateral horizontal groups: yes