- Dynabrade?s Variable Speed Pencil Grinder offers precision deburring, finishing and engraving, with easily adjustable speed to suit each application. This is an essential tool for turbine blade manufacturers, tool & die shops, machine shops, investment castings, jewelry, medical implants, composites and more!
- High-Quality Air Line; 1/4″ (6 mm) in diameter and 5 feet (1.5 m) in length. Over-hose Assembly; Helps direct air and excess oil away from operator – 12″ (305 mm) in length. Variable Speed Flow Control; Adjust your desired speed with dial, up to 60,000 RPM. Unlike ?roll valves,? your speed stays set when turning tool off and on. One Touch Starts Tool at Desired Speed; Handy push-button for simple on/off operation. Tool comes on at same speed as when you shut it off!
- Ergonomic Tactile Grip; Tactile, non-slip grip is insulated for comfortable use. Large Precision Bearings; Ensure longer tool life than competitive models. Spindle Lock Allows Easy Collet Tightening; With ?thru-hole? for quick accessory change. No struggling with two wrenches! Low Collet Run-Out; Run-out of less than .003 minimizes vibration and ensures high-quality cut.
- Model accepts optional collet inserts: 1/16″ (51760) and 3/32″ (51674).
- Description
- Video
- Tool Specifications
- Parts
- Disassembly/ Assembly Instructions
- Air Tool Maintenance Guide
Tool Specifications
Mfr. Model # 52850
| Collet Insert Size | 1/8″ |
|---|---|
| Diameter [inches] | 0.6000 |
| hp | 0.1 |
| Max. Air Flow [SCFM] | 6.0 |
| Max. RPM | 60,000 |
| Air Inlet Thread | 1/4″ NPT |
| Exhaust Type | Rear |
| CE Certified | Yes |
| EAC Certified | Yes |
| Height [inches] | 4.25 |
| Length [inches] | 4.5 |
| Weight [pounds] | 0.7 |
| Width [inches] | 6.5 |
| Hose I.D. [inches] | 1/4″ |
| Vacuum Type | Non-Vacuum |
| EAN (UPC) Code | 0616026528505 |
| Motor Type | Rotary Vane |
| Motor Free Speed | 60000.0 |
| Tool Style | Straight Line |
Disassembly/ Assembly Instructions
| Disassembly/ Assembly Instructions |
|---|

Standard Abrasives 36449 Surface Conditioning FE Belt 885031, 3-1/2 x 15-1/2 in MED, 7000122074
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 54109, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 1-1/2 in x NH A MED, 7100075533, 200 per case
Norton 66261014792 - 2" Medium Grade Aluminum Oxide Bear-Tex Speed-Lok High Strength Maroon TR Non-Woven Abrasive Disc 160 Each
Standard Abrasives 32533 Surface Conditioning RC Belt 888052, 1/2 in x 24 in MED, 7000121665
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
Standard Abrasives 546007, Quick Change Disc Pad, TR, 2 in, MED, 7100092834
Standard Abrasives 36388 Surface Conditioning RC Belt 888082, 1/2 in x 12 in, MED, 7010368566
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 54136, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 2 in x NH A MED, 7100075707, 200 per case
3M Super Abrasives Roloc Disc, 2" Type-R, Medium AO High Strength, Box of 50
Dynabrade 90873 2" Dia. Medium NWN DynaBrite Locking-Type Disc, 25/pack
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 02960, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1 in x 1 in, 7100009186, Box of 3
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
Dynabrade 91640 2" W x 36" L 180 Grit A/O DynaCut Belt, 10/pack
3M 02690, Plastic Bonding Adhesive 2665B, Black, 30 cc syringe, 7100111531, 24/case
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Norton 66261014936 3" DIA X 1/8" Thick, Bear-Tex NEX Rapid Blend Quick-Change Type III Non-Woven Unified Wheel, 40 Each
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 01185 Vane Set (4pk)
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Insize 7230, SCRIBER, 6928640320064
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M 28849, Unitized Wheel Mandrel 28849, 1-7/8 in x 1/4 in x 3/4 in x 1/2 in, 7100082548
Dynabrade 52410 3" Dia. 7 Degree Offset Disc Sander, Front Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Thread
ACS CX1250 Diamond Belts, 1/2" X 24" 200u
Dynabrade 95848 Dynabrade Gear Oil
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series with Brake, 25,000RPM, 33424
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 05209, Hookit Sanding Block D/F, 70MM x 396MM, 7000028312
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 51301 .5 hp Straight-Line Die Grinder 




