Driak 3pcs 16-30.5/5-20/3-14mm HSS Titanium Plating Taper Umbrella Drill Bit Umbrella Chamfer Chamfering Cutter Step Drill Bit Set

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Driak 3pcs 16-30.5/5-20/3-14mm HSS Titanium Plating Features

• 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

About Driak 3pcs 16-30.5/5-20/3-14mm HSS Titanium Plating

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