1/2-20UNF Keyless Drill Chuck, 2-13 mm Clamp Self-tightening Drill Chuck, Professional Hand Tool with simple installation, long service life

• Convenient and economical: the keyless chuck is hand-held for easy change of bits. Durable and has a long service life, suitable for long working hours.
• Prevent drill bits from loosening: keyless and self-tensioning design agreement, the chuck can hold the drill firmly and steadily, and is not easy to detach.
• Frame: 1 / 2-20UNF. Wide range of collet sizes from 2 to 13 mm, suitable for many types of drilling.
• Quick Change: Drill heads instantly change the impact screwdriver to contain non-fast interchangeable bits and bits.
• 100%: If you have any questions about our chucks during use, please feel free to contact our 24/7 customer service, we will provide a professional assistant for you.

Functions: The chuck can hold the drill firmly and robustly, and is not easy to loosen. Durable and has a long service life, suitable for long working hours. Easy to install and disassemble, more convenient and labor-saving. Wide range of clamp sizes in the range from 2 to 13 mm, suitable for many types of drills. The keyless and self-tensioning design is more in line with human technology. Specification: Diameter: 43 mm Length: 71 mm Connection Size: 1/2-20UNF Clamping Range: 2~13mm/0.04~0.51inch Package List: 1 * drill chuck