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4Pcs Metric Three Flats Shank Spiral Flute Bright Step Drill Bit Set for Sheet Metal Tube Drilling in Wooden Case
4Pcs Metric Three Flats Shank Spiral Flute Bright Step Drill Bit Set for Sheet Metal Tube Drilling in Wooden Case


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4Pcs Metric Three Flats Shank Spiral Flute Bright Step Drill Bit Set for Sheet Metal Tube Drilling in Wooden Case

 Product Description
Procuct Name 4Pcs Three Flats Shank Spiral Flute Bright Step Drill Bit Set for Sheet Metal Tube Drilling in Wooden Case 
Size 4-12mm, 4-20mm, 4-32mm, 4-39mm
Material HSS   (Cobalt M35 is Available)
Flute Type Spiral Flute   (Straight Flute is Available)
Flute Number Two Flutes   (Single FluteThree Flutes are Available)
Shank  Three Flats Shank   (Quick Change Hex ShankRound ShankDouble R Shank are Available)
Surface Finish Bright   (TiNBlack & AmberCo-coatedBlack OxideBlack & BrightTiAIN are Available)
Package 4Pcs in Wooden Case
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. The Spiral Groove: creates better, less noise, less force has to be used.

7. Only for rotary use. 

 Product Sizes

4Pcs Metric Three Flats Shank Spiral Flute Bright Step Drill Bit Set for Sheet Metal Tube Drilling in Wooden Case

 

We Can Produce All Sizes of Step Drill Bits as Your Requirement ,Please Contact Us If You Need.

highly experienced industry professionals
- all at your disposal