Irwin® Unibit® 10231CB Fractional Step Drill, NO 1, 1/8 in, 1/2 in, 13 Steps, 13 Hole, M35 Cobalt HSS
Irwin® Unibit® Step Drill, Fractional, NO 1, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 7-1/8 in Overall Length, 13 Steps, 1/32 in Step Depth, 13 Hole Sizes, 1 Flutes, Radial Concave Flute, 1/4 in Shank, Hex Shank, SpeedPoint Point, M35 HS-Co Cutting Edge, M35 Cobalt HSS, Steam Oxide, Applicable Materials: Metals
- 6X Longer life
- Laser marked size??
- 3-1/8 in H x 4-7/8 in
- General purpose
- Cobalt is harder than high speed steel and provides better wear resistance, commonly used on high tensile alloys
- Bright provides a smooth, polished finish on the tool, increases chip flow in softer materials such as aluminum, wood and plastic