Product Description

Description:Drillpro 3pcs 16-30.5mm 5-20mm 3-14mm HSS M2 umbrella chamfer tool chamfering cutter step drill bit set.

Specification:
MaterialHigh-speed steel 6542(M2)(Suit for use in hardness under 25) 
StyleTaper Umbrella
ColorGold
Surface TreatmentWhite Diamond 
Shank Size6mm; 8mm;10mm
Type
16-30.5mm,10mm Handle Dia.
6-20mm, 8mm Handle Dia.
3-14mm, 6mm Handle Dia.
Used forWood, plastic, metal drilling; PV Plate, Stainless steel sheet

 

Features:

- Unique umbrella structure, a drill can open a variety of sizes aperture.
- Does not require the use of a center punch, and is less likely to break than a regular twist drill.
- Deburring, chamfering and round hole reaming are done at one time with little shaking.- Using 6542# high speed steel, easy drilling, high hardness, sharp edge, good cutting effect.- Gold titanium plating process is not fade, not easy to scratch. 

Package Included:3 x Step Drills

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