3Pcs Metric Straight Flute HSS Sheet Metal Tube Conical Drill Bit

Procuct Name 3Pcs Three Flats Shank Single Groove HSS Conical Drill Bits for Tube and Sheet Drilling in Metal Case
Size 3-14mm, 8-20mm, 16-30.5mm
Material HSS   (Cobalt M35 is Available)
Flute Type Straight Flute   (Spiral Flute is Available)
Flute Number Single Flute   (Two Flutes, Three Flutes are Available)
Shank  Three Flats Shank   (Quick Change Hex Shank, Round Shank, Double R Shank are Available)
Surface Finish Bright   (TiN, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available)
Package 3Pcs in Metal Box   (Plastic Box is Available)

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

3. Single Cutting Edge:creates perfectly round holes in metal, plastic, wood and other thin materials without center punching.

4. High speed steel provides good life and high precision.

5. Three Flats Shank: fits into power tools chuck securely and eliminates slip.

6. Only for rotary use. 

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