Irwin Wood Countersinks #4 x 7/64" Brand_Coghlans Very Effective On Flat Surfaces

Very Effective On Flat Surfaces & In Hard To Reach Areas Like Slots

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

bi-metal temperature sensor

1/2" diameter

Constructed of M-2 high-speed steel for the best combination of strength

Irwin Wood Countersinks #4 x 7/64" Brand_Coghlans Very Effective On Flat SurfacesTapered 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.