- Made of HSS high speed steel, coated with titanium to increase the lifetime of the drills
- The edges of the drilled hole remain clean and burr-free
- Quick heat dissipation during drilling in hard materials
- Hex fitting for quick replacement when using bit holders, 2 spiral chip grooves for efficient dust removal
- 1/8" - 1/2" Step drill , steps: 1/8, 5/32, 5/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2
- 3/16" - 1/25" drill bit, steps: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2
- 1/4" - 3/4" drill bit, steps: 1/4, 3/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4
