Drill Set Black | Imperial: 1/16 - 3/8 x 1/64" rises | 21pc

Drill Set Black | Imperial: 1/16 - 3/8 x 1/64" rises | 21pc

Regular price $168.88 Sale

Black Finish Jobber Drills (also called blue finish) acheive their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The 118° Split Point drills are self centering and ideal for use in materials such as mild steel and cast iron.