HSS Step Drill Bit

Product Overview

Description

 

HSS Step Drill Bit

HSS Straight Flute Step Drills

HSS Spiral Flute Step Drill Bit 

(1) Stright Flute / Spiral Flute
4-12mm x 9 steps
4-20mm x 9 steps
4-30mm x 14 steps
4-32mm x 15 steps
6-20mm x 8 steps
6-30mm x 13 steps
6-30.5mm x 10 steps
6-32mm x 9 steps

3/16"-1/2" x 6 steps
1/8"-1/2" x 13 steps
1/4"-3/4" x 9 steps
3/16"-7/8" x 12 steps
7/16"-1-1/8" x 12 steps
1/4" - 1-1/2" x 11 steps
1/2" - 1" x 9 steps
9/16" - 1" x 8 steps
3/4" - 1-3/8" x 11 steps
13/16" - 1-3/8" x 10 steps

(2) Shank:
      Round shank;
      Hex shank;
      Three flat shank;
      Hex quick change shank;

(3) Surface:
      White bright;
      Titanium coated;
      Black nitrided;
      Cobalt coated;

(4) 3pcs Step Drills Set
3/16 - 1/2 x 6 step
1/8 - 1/2 x 13 step
1/4 - 3/4 x 9 step
4 - 12mm x 9 step
4 - 20mm x 9 step
4 - 30mm x 14 step

4 - 12mm x 9 step
6 - 20mm x 8 step
6 - 30mm x 13 step
Packing: (a) wooden box. (b) aluminum case. (c) blister with card.