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- 3/8" Head Diameter
- 1/4" Shank
- Ball Shape
- Radius End
features
- Stocked in medium cuts.
- Ground burs with 1/4" (6 mm) shanks
- Limited number of burs available with 1/8" (3 mm) shanks for use with portable hand tools (electric or air), drill press or flexible shaft
| Shape | Ball |
| Shank Size | 1/4 in |
| Grit | 40 |
| Head Size | 3/8 in |
| Cooper Family | NFI011 - Burs |
| RPM [Max] | 13700 rpm |
| Arbor Size | 5/8 in |
| Diameter | 4 in |
| Weight | 0.06 LB |
