Irwin Wood Countersinks #14 15/64 In. Category_Home Safety & Security Single concave flute design creates

Single concave flute design creates perfectly round holes in thin materials including steel

right angle teeth grip better and last longer

no arbor needed

feature aggressive carbide tooth geometry for an unmatched 50x longer cutting life

Irwin Wood Countersinks #14 15/64 In. Category_Home Safety & Security Single concave flute design createsTapered 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.