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21/64" Quick Change Hex Shank Drill Bit Cobalt COHEX21/64 (6 / Pkg.) Authentic
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21/64″ Quick Change Hex Shank Drill Bit Cobalt COHEX21/64 (6 / Pkg.) Authentic

Original price was: $41.87.Current price is: $21.77.

For orders under $150.00, a shipping fee of $12.99 applies.

SKU: SKHWTA00ZBX Category: Tag:
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Specs

    Quantity: 6-piece set

    Diameter: 21/64 in (0.328125 in) / 8.34 mm

    Material: Cobalt steel alloy

    Shank: Hex

    Style: Quick-change hex shank drill bit

    Bit type: Drill bit

Features

    Cobalt alloy provides greater hardness and heat tolerance, improving edge retention when drilling through hard metals such as stainless steel and alloy steels

    Hex shank reduces slippage in hex-driven chucks and minimizes wobble during operation

    Durable construction supports longer tool life under high-temperature drilling conditions

    Designed for metalworking and fabrication tasks requiring medium-diameter holes in tough materials

    Use scenarios: pilot holes in stainless steel, drilling through cast iron, and enlarging holes in hard alloys

    Practical tips: apply cutting fluid or oil to manage heat, clamp work securely, and use steady feed to improve hole quality

Physical

    Packaged as a 6-piece set

    Shank type: Hex (suitable for hex chucks and related fastening systems)

    Design supports quick-change style use when paired with appropriate hex-driven tooling

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