Drill Chuck PRO 13 mm 1/2-20 UNF self-tightening metal (blister pack)

PRO Drill Chuck 13 mm with 1/2-20 UNF self-tightening metal construction is designed to secure round and tapered-shank drill bits and accessories in portable power drills and drivers. The chuck accepts drill bits up to 13 mm in diameter and features a 1/2-20 UNF threaded mount for compatibility with tools that use imperial threaded adaptors. Supplied in a clear blister pack, this compact metal chuck offers a straightforward solution for applications that require frequent bit changes and reliable clamping force.

Advantages

The metal self-tightening mechanism provides firm grip on round and tapered shanks without the need for an additional key, improving convenience during repeated tool changes. Its 13 mm capacity covers a wide range of common drill bit sizes used for woodworking, metalworking and plastic fabrication. The 1/2-20 UNF thread ensures mechanical compatibility with many portable drill spindles and adapters. The blister pack protects the chuck while allowing quick visual inspection before installation.

Suitable for

• General drilling in wood, metal and plastics
• Home renovation and DIY projects
• Light workshop and maintenance tasks
• Quick bit changes where a keyed chuck is impractical

Key specifications

• Maximum capacity: 13 mm
• Thread type: 1/2-20 UNF
• Construction: metal body with self-tightening jaws
• Mounting: threaded mount for direct attachment to compatible spindles or adapters
• Packaging: blister pack for protection and visibility

How to use

Ensure the drill or driver is switched off and disconnected from power before fitting the chuck. Thread the chuck onto the tool spindle or adapter using the 1/2-20 UNF connection and tighten by hand until secure; final tightening occurs automatically when the tool is used due to the self-tightening mechanism. Insert the drill bit into the jaws, apply axial pressure and run the tool briefly to seat the bit; the jaws will clamp more tightly as torque is applied. To remove a bit or the chuck, stop the tool and release any residual tension before loosening by hand or using the appropriate adapter.

Usage recommendations

Use appropriate drill bits for the material being worked and avoid overloading the chuck by using bits within the 13 mm capacity. Periodically clean and lightly lubricate the chuck mechanism to maintain smooth operation and consistent clamping. For high-torque or heavy-duty drilling applications, use a purpose-designed keyed or heavy-duty chuck to ensure maximum safety and longevity.