Feature

●3pcs 16-30.5/5-20/3-14mm HSS 6542 Umbrella Chamfering Cutter Step Drill Bit Set
●size:16-30.5mm/0.62"-1.2",10mm Handle Dia. 2.6-20mm/0.1"-0.79", 8mm Handle Dia.3.3-14mm/0.13"-0.55", 6mm Handle Dia.
●Unique umbrella structure, a drill can open a variety of sizes aperture.
●Using 4241# high speed steel, easy drilling, high hardness, sharp edge, good cutting effect.
●Deburring, chamfering and round hole reaming are done at one time with little shaking


Description

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 4241# high speed steel, easy drilling, high hardness, sharp edge, good cutting effect.
- Gold titanium plating process is not fade, not easy to scratch.

Specification:
MaterialHigh-speed steel 4241
Style:Taper Umbrella
Color：Gold
Shank Size：6mm; 8mm;10mm
Type:1.16-30.5mm/0.62"-1.2",10mm Handle Dia.
2.6-20mm/0.1"-0.79", 8mm Handle Dia.
3.3-14mm/0.13"-0.55", 6mm Handle Dia.

Package Included:
3pcs Umbrella chamfer chamfering cutter