3D 5D Solid Carbide Twist Drill Bits CNC Metal Drills Drilling Hole for Iron Steel Aluminum Coated General Purpose

3D/5D External Cooling Twist Drill Bit Diameter 3mm-16mm

◆ Unique drill tip design offers high versatility, delivering excellent performance in machining carbon steel, alloy steel, cast iron, and other materials.
◆ Blunt edge treatment enhances impact resistance.
◆ Anti-chipping design improves durability and extends tool life.

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