Irwin Wood Countersinks #4 x 7/64" Brand_Coghlans discs grind through material faster

discs grind through material faster than other discs & offer extra long grinding life

and plastic

Blade Wiper Removes Excess Dirt & Protects Knife Blade

reduces vibrations and provides the "feel of wood"

Lock-n-Load Quick Change Extensions Features:

Irwin Wood Countersinks #4 x 7/64" Brand_Coghlans discs grind through material fasterTapered drill with widened flutes for drilling fast, clean pilot holes. Adjustable four cutter counterbore cuts and clears chips quicker for fast, smooth countersinking. Counterbore attaches to flats on shank with two hex screws for a secure fit, and can be adjusted for controlled pilot hole depth. 1 4" quick change shank reduces slipping in standard chucks and is compatible with all 1 4" quick change chucks, including impact drills.