NEW BLACK & DECKER 3/8" HIGH-SPEED STEEL DRILL BIT W/ 1/4” REDUCED SHANK 15624 (70-432)
Precision ground points, Flutes, body clearance and drill diameter for fast, accurate drilling of truly round holes
Hi spiral – angle flutes for free cutting and better chip removal
Taper ground to prevent binding and breakage
Surface – treated flutes and margins reduce galling or build-up when drilling soft metals
Specifically heat-treated, high-speed steel
Hole size printed on shank for identification
Dimensional and element tolerances conform to USA standard B94.11.1967