3Pcs Metric 3 Flats Shank Straight Groove Cone Titanium HSS Step Drill Bit Set in Case

Procuct Name 3Pcs 3 Flats Shank Straight Groove Cone Titanium HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Wooden Case
Size 4-12mm, 4-20mm, 4-32mm   (Inch Size is Available)
Material HSS   (Cobalt M35 is Available)
Flute Type Straight Flute   (Spiral Flute is Available)
Flute Number Two Flutes   (Single Flute, Three Flutes are Available)
Shank  Three Flats Shank   (Quick Change Hex Shank, Round Shank, Double R Shank are Available)
Surface Finish TiN   (Bright, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available)
Package 3Pcs in Wooden Case   (Nylon Bag, Plastic Box, Double Blister, Metal Box, Aluminum Case are Available)
Features

1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm.

2. 135° Split Point Tip: increases cutting speed with self-centering and the drills do not run off center.

3. A variety of hole diameters can be drilled using only one tool. 

4. The dimension of drilled hole is exact. 

5. Two Flute Design: provides longer life and better chip removal.

6. Titanium coating provides up to 2 times the life over high speed steel.

1-16202N454-1L1
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