These tools offer outstanding finishes in the most abrasive of glass fiber or carbon-fiber-reinforced polymer (CFRP) applications. Combining a down-cut spiral with ultra-abrasion resistant embedded diamonds. Excellent for superb top finishes and outstanding performance. For use on routers and machining centers with or without CNC systems. Must secure work-piece, #44110, diameter (D): 1/4, cutting height (B): 1-1/8, Shank (D):, /4, overall length (L): 3, flutes: 3, 44110 Diamond grit alloy steel end mill coated with electro-plated diamonds 1/4 dia x 1-1/8 x 1/4 shank down-cut