{"autoplay":"true","autoplay_speed":3000,"speed":300,"arrows":"true","dots":"true"}

Click here to see HSS Step Drill Bits

HSS Step Drill Bit Sets

Features:

  • Made of high quality high speed steel
  • Producing round, smooth holes in a wide variety of material
  • Enlarging holes in sheet metals without center punch or pilot bits
  • Using bench drill or light drilling machines
  • Available flute shape: straight flute, sprial flute, double spiral flute
  • Available surface treatment: White; Titanium Coating; TiALN Coating
  • Available shank type: round shank, three flatted shank, hex shank
  • Specifications can be customized
  • Strong carrying box with easy identifying
ItemDescription
3pc set4 - 12mm x 9 steps;
4 - 20mm x 9 steps;
4 - 30mm x 14 steps
3pc set4 - 12mm x 5 steps;
4 - 20mm x 9 steps;
4 - 32mm x 15 steps
3pc set4 - 12mm x 9 steps;
6 - 20mm x 8 steps;
6 - 30mm x 13 steps
4pc set3 - 12mm x 5 steps;
4 - 12mm x 9 steps
4 - 20mm x 9 steps;
4 - 32mm x 15 steps
3pc set3/16" - 1/2" x 6 steps;
1/8" - 1/2" x 13 steps;
1/4" - 3/4" x 9 steps
5pc set3/16" - 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;
1/4" - 1 3/8" x 10 steps