HSS Steel Titanium Coated Step Drill (3pcs)

Automatically Deburrs Holes As You Drill
Two-Flute Design Gives You Faster And Smoother Cutting
Titanium Nitride Coating For Cooler Running
Quick-Change 1/4″ Hex Shank
High Speed Steel For Long Life
These Step Drill Bits Are Ideal For Variety Of Materials From Metal, Plastic, Fiberglass To Wood
They Also Help To Enlarge Existing Holes
The Two Flute Design Tips Can Make The Penetration Faster Without Chipping
3 pcs Titanium HSS Cone Step Drill Bit Set Imperial 1/4″ Hex Shank
3 pcs 1/4” Large HSS Hex Shank Titanium Cone Coated Step Drill Bit Set with case
3 pcs Large HSS Steel Step Cone Drill Titanium Bit Set Hole Cutter


Specification:

Material: HSS
1/4″ Hex Shank
Sizes: (approx.)
3-12mm:3, 4, 5, 6, 7, 8, 9, 10, 11, 12 mm/ 0.12, 0.16, 0.20, 0.24, 0.28, 0.31, 0.35, 0.39, 0.43, 0.47 in
4-12mm:4, 6, 8, 10, 12 mm/ 0.16, 0.24, 0.31, 0.39, 0.47 in
4-20mm:4, 6, 8, 10, 12, 14, 16, 18, 20 mm/ 0.16, 0.24, 0.31, 0.39, 0.47, 0.55, 0.63, 0.71, 0.79 in
4241 High-Speed Steel HSS (Suitable For Use In The Workpieces Whose Hardness Is 25 Degrees Such As Carbon Steel, Plate, Insulation Board, and Wood Board)

Package included:

3 * Step Drill Bit With Bag