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KEY CHUCK - Crescent Tool

Part #: JACJCM13700P

The Crescent Tool JACJCM13700P Key Chuck is a robust and essential accessory designed for professionals who require reliable and secure drill bit changes. This specific model, a Jacobs K3 drill chuck key, is engineered to provide precise tightening and loosening, ensuring optimal performance and safety for various drilling applications. Its professional-grade construction guarantees durability and consistent operation in demanding work environments.

Key Features

  • Secure Bit Retention: The K3 key is designed to firmly secure drill bits within the chuck, minimizing slippage and enhancing operational safety.
  • Enhanced Leverage and Comfort: Featuring nickel thumb grips, this key chuck provides improved leverage and user comfort, facilitating easier and more efficient bit changes.
  • Durable Construction: Built with case-hardened key bodies and heads, along with soft steel handles, it is engineered to withstand heavy use and limit the risk of dangerous fracturing under excessive load.
  • Broad Compatibility: This chuck key is compatible with 1/2-inch and 5/8-inch drill chucks, specifically designed for 14N, 34 Series, and 3 Series chucks, and fits both 3JT and 6JT mounts.

Applications

The Jacobs K3 Key Chuck is an indispensable tool for professionals across various trades, including automotive, industrial, woodworking, and metalworking. It is ideal for rapidly and securely changing drill bits on drill presses, hand drills, and other power drills, making it suitable for tasks requiring precise hole drilling and fastening. Its robust design ensures it can handle the repetitive demands of a busy workshop or job site, from securing specialized drill bits for intricate metal fabrication to fastening larger bits for heavy-duty construction tasks.

Specifications

  • Manufacturer: Crescent Tool (Jacobs Brand)
  • Model Number: JACJCM13700P
  • Key Number: K3
  • Pilot Diameter: 5/16 inches
  • Chuck Size Compatibility: 1/2 inch and 5/8 inch chucks
  • Mount Compatibility: 3JT and 6JT
  • Product Number Compatibility: 14N, 34 Series, 3 Series
Only 3 left in stock - order soon

$12.71

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Sunday 07 June, 2026.

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