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3Pcs Metric 3 Flats Shank Spiral Flute Cobalt Coated HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Plastic Box
3Pcs Metric 3 Flats Shank Spiral Flute Cobalt Coated HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Plastic Box


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3Pcs Metric 3 Flats Shank Spiral Flute Cobalt Coated HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Plastic Box

 Product Description

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Procuct Name 3Pcs 3 Flats Shank Spiral Flute Cobalt Coated HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Plastic Box
Size 4-12mm, 4-20mm, 6-30mm
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 Cobalt Coated   (TiNBrightBlack & AmberBlack OxideBlack & BrightTiAIN are Available)
Package 3Pcs in Plastic Box
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° Spilt 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. Cobalt coating provides up to 6 times the life over high speed steel.

7. Only for rotary use. 

 Product Sizes

3Pcs Metric 3 Flats Shank Spiral Flute Cobalt Coated HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Plastic Box

 

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

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