Standard Step Drills

HSUM

High Speed Steel & Titanium Nitride Coated

This drill has an exclusive single radial concave flute
that allows drilling of round holes in thin materials.
For use in drilling copper, brass, aluminum, thin steels,
plastic, laminates, and drilling hard or abrasive materials.

  • - Multiple diameters in one tool
    - Can be used to deburr holes
    - Can be used to enlarge holes

 

Cap Screw Clearance Hole
Cobalt
For Drillinersinking 82 Degree Flat Head Machine Screw Clearance Holesg and Count
For Drilling 45 Degree Chamfered Holes To-Be-Tapped
Standard Step Drill Set
Taper Length 45 Degree & Cap Screw Clearance