Drill Chuck 16 mm 1/2" with Key GEKO G00540

Drill Chuck 16 mm 1/2" with Key GEKO G00540 is a keyed metal chuck designed to accept round and hex-shanked drill bits with shank diameters up to 16 mm. The 1/2" (0.5") threaded arbor interface is compatible with many handheld and bench drills that accept a half-inch mounting, and the keyed tightening mechanism provides secure clamping for general drilling and DIY tasks. The construction is intended to deliver reliable bit retention and straightforward operation for a range of common materials.

Advantages

The keyed design ensures a strong mechanical grip and reduces slippage under load, improving drill bit stability during use. A metal housing and jaws offer durability for repeated tightening and moderate workshop use. Compatibility with 1/2" arbors makes it suitable for many standard drills without additional adapters, while the 16 mm capacity covers a wide range of frequently used drill bit sizes.

Suitable for

• General wood, metal and plastic drilling tasks
• Home DIY projects and repairs
• Light workshop and maintenance work with handheld or bench drills
• Situations requiring secure keyed clamping of drill bits

Key specifications

• Maximum bit capacity: 16 mm
• Arbor interface: 1/2" (0.5") threaded mount
• Type: keyed chuck with key for tightening
• Material: metal housing and jaws (steel)
• Clamping mechanism: toothed/gear key engagement for positive grip

How to use

Fit the chuck onto a drill with a compatible 1/2" arbor by threading it onto the drill spindle or installing according to the drill manufacturer's instructions. Insert the drill bit into the jaws to the desired depth, then use the supplied key to tighten the chuck by engaging the geared teeth and turning clockwise until the bit is firmly clamped. Before drilling, verify the bit is centered and securely held; periodically check and retighten the chuck during extended work or when changing bit sizes. To remove a bit, insert the key and turn counterclockwise.

Usage recommendations

Use appropriate drill speeds and feed pressure for the material being worked, and always wear eye protection. Avoid overtightening the chuck beyond what is needed to hold the bit securely to reduce wear on jaws and threads. Keep the key in a known place to prevent misplacement and clean metal shavings from the chuck after use to maintain smooth operation.