Spiral Step Drill Bit High Speed Steel Cobalt Hex Shank Steps Drills 4-12mm ◈
9,15 €
Feature: 1. M35 Grade Cobalt Steel: Made of strong M35 grade cobalt steel, with 5% cobalt added to form a hardened heat resistant alloy with longer life. Greater Torsion: This 1/4in hex shank drill bit can be clamped tighter by compatible drill bits and screwdrivers to achieve greater torsion.
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