Hex Shank Step Drill Bit Twist Drill Cobalt High-Speed Steel Titanium Nitride Coating

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[6.35mm Hex Shank]
: The step drill features a 6.35mm hex shank for a secure grip and effective anti-slip. 4-20mm (9 steps): 4-6-8-10-12-14-16-18-20mm. 4-12mm (9 steps): 4-5-6-7-8-9-10-11-12mm.
[High-Quality M35 Material]: Made from M35 cobalt alloy, it boasts excellent hardness and wear resistance. The M35 alloy material ensures the durability and stable performance of the drill bit.

[Titanium Aluminum Nitride Coating]
: Features a titanium aluminum nitride coating with excellent wear and corrosion resistance, enhancing the durability of the step drill. This special coating reduces friction and extends the lifespan of the drill bit while maintaining stable cutting performance.

[Double Edge Design]
: The step drill utilizes a double-edge design to improve cutting efficiency and enhance flexibility. The 75° spiral edge and 118° X-shaped drill bit prevent slippage, allowing for faster drilling and precise cutting.

[Compatible with Various Materials]
: This step drill is designed to work with a variety of materials including wood, metal, and plastic. It is suitable for hard materials such as aluminum plates, steel plates, stainless steel plates, carbon steel, stainless steel plates under 1mm thick, and iron plates and aluminum plates under 3mm thick.

Hex Shank Step Drill Twist Drill M35 Cobalt High-Speed Steel Titanium Nitride Coated Double Edge Drill Bit 2-Piece Set [4-20mm/4-12mm] Sheet Metal and Aluminum Woodworking DIY Tool for Home Use

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