DRILLCO - 5/16,SPIRAL FLUTE 5/16" SHANK NITRO CONS - 427N120

Nitro Heavy-Duty Construction Reamers have a surface treatment, which adds a hard, protective layer to the reamer. This increases hardness without increasing brittleness. Body is black and gold surface treated for maximum lubricity. 3-flats reduced shank.
Made with premium grade HSS to last longer
Spiral flutes for faster chip ejection and cutting operation
3- flats reduced shank for use in portable power tools
Tapered point for easy realignment of holes
Black and gold surface treatment for maximum lubricity
Made in USA