Product Overview
Bordo 4 Piece HSS Imperial Reduced Shank Drill Set 2651-S1
- 118° notched point 30° helix
- 1/2" Reduced Shank
DRILL BIT SURFACE TREATMENT
Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating. This surface aids chip flow and heat dissipation. The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.
Includes:
- 1 x 5/8"
- 1 x 3/4"
- 1 x 7/8"
- 1 x 1"
