DYNABRADE Cone Or Plug 6" (152 mm) Extension Wheel Grinder - 52721
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1 hp, Straight-Line, 18,000 RPM, Rear Exhaust, 3/8"-24 Spindle Thread.
- Cone or Plug Wheel Grinder, for cleaning metal, grinding and smoothing weld seams, removing imperfections before painting.
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Straight Line, 1 hp, Rear Exhaust, 6" Extension, 18,000 RPM.
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Accepts optional Abrasive Cone or Plug Wheel, 1-1/4" diameter. Governor-controlled motor maintains RPM under heavy load.
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Safety-lock lever is included on all models. Standard cushioned grip enhances operator comfort and offers additional control.
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Industrial applications in fabrication plants, welding shops, foundries, steel mills and shipyards.
Specifications
| Air Consumption (SCFM) |
40.0 |
| Power (hp) |
1.0 |
| Max. RPM |
18,000 |
| Tool Spindle Thread |
3/8"- 24 Male |
| Air Inlet Thread |
3/8" NPT |
| Exhaust Type |
Rear |
| GL_Country Of Origin |
US |
| Hose I.D. in. (mm) |
3/8" |
| Vacuum Type |
Non-Vacuum |
| Motor Type |
Rotary Vane |
| Height in. (mm) |
1.875 |
| Length in. (mm) |
14.375 |
| Weight lb. (kg) |
3.46 |
| Width in. (mm) |
5.75 |
| Pkg. Height in. (mm) |
3.25 |
| Pkg. Length in. (mm) |
16 |
| Pkg. Weight lb. (kg) |
4.41 |
| Pkg. Width in. (mm) |
5.75 |
| CE Certified |
Yes |
| EAN (UPC) |
0616026527218 |
| EAC Certified |
Yes |
| Tool Style |
Straight Line |
| Air Consumption (SCFM) |
40.0 |
| Power (hp) |
1.0 |
| Max. RPM |
18,000 |
| Tool Spindle Thread |
3/8"- 24 Male |
| Air Inlet Thread |
3/8" NPT |
| Exhaust Type |
Rear |
| GL_Country Of Origin |
US |
| Hose I.D. in. (mm) |
3/8" |
| Vacuum Type |
Non-Vacuum |
| Motor Type |
Rotary Vane |
| Height in. (mm) |
1.875 |
| Length in. (mm) |
14.375 |
| Weight lb. (kg) |
3.46 |
| Width in. (mm) |
5.75 |
| Pkg. Height in. (mm) |
3.25 |
| Pkg. Length in. (mm) |
16 |
| Pkg. Weight lb. (kg) |
4.41 |
| Pkg. Width in. (mm) |
5.75 |
| CE Certified |
Yes |
| EAN (UPC) |
0616026527218 |
| EAC Certified |
Yes |
| Tool Style |
Straight Line |
What our Experts Think
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Long Extension: 6" reach improves access to deep or hard-to-reach areas for precise grinding.
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Powerful Performance: Consistent grinding power for heavy-duty surface prep and finishing.
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Cone & Plug Wheel Compatible: Ideal for weld blending, deburring, and contour shaping.
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Robust Industrial Design: Built to endure tough working conditions with reliable durability.
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Ergonomic Grip: Designed to reduce user fatigue during prolonged use.
Q&A
Q: What is the DYNABRADE Cone or Plug 6" Extension Wheel Grinder - 52721?
A: A pneumatic grinder with a 6-inch extension designed for heavy-duty grinding in hard-to-reach areas.
Q: What are its key features?
A: Extended reach, powerful motor, ergonomic design, and compatibility with 6" cone or plug wheels.
Q: What applications is it suited for?
A: Ideal for weld removal, casting clean-up, and surface preparation in metal fabrication and maintenance.
Q: What wheel types does it support?
A: Compatible with 6" Type 16, 17, and 18 cone or plug wheels.
Q: Why choose this grinder?
A: Delivers strong performance and precise control for tough grinding tasks in confined spaces.
Maintenance Tips
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Inspect tool and extension wheel regularly for wear, cracks, or loose parts.
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Lubricate air motor with 2-3 drops of pneumatic tool oil before each use.
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Clean housing and grinding area to remove dust and debris.
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Check grinding wheel balance and condition; replace if worn or damaged.
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Use clean, dry compressed air (max 90 PSI) to avoid internal damage.
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Store in a dry, protected place when not in use to extend tool life.
