What you Get: The 8pcs Drill Chuck Key Wrench set contains 3/4" (20mm), 5/8" (16mm), 1/2" (13mm), 3/8" (10mm), 1/4" (6mm), 5/32" (4mm) drill chuck key wrench, 1pc drill chuck key tools, 1pc 16 teeth chuck key, meeting a variety of drill chuck fastening and loosening needs.

Carbon Steel Material: Made of solid carbon steel with black coating makes it resistant to rust and corrosion for a long time. Our keyless chuck drills are strong enough to withstand greater resistance and stronger force. smoothly polishing surface treatment, fit the drills perfectly and allow bits to be tightened firmly

4 Way Key Chuck: 5.3mm, 6mm, 5.7mm, 5.7mm in the slot hole diameter; 14mm, 12.7mm, 16.5mm, 16mm in bevel gear tooth diameter, helping with securing drill bits in hammer drills and is also universal for many other types of drills. Square hole design makes you easy to carry.

Premium Drill Chuck Key: The drill press chuck keys are designed with long handle to provide you with good leverage to easily tighten or loosen the chuck for quick bit changes. The range mark on the front end of the drill help you know the size quickly when working. Each drill chuck key is accurately sized for mounting and dismounting a variety of drills. Perfect replacement for lost or damaged chuck keys.

Wide Application: The drill chuck key wrench set can be compatible with most of power tool brands. Perfect for electric motorcycle, electric hand drill, aircraft drill, pneumatic drill, bench drill and machine tools. Ideal gift for do-it-yourself projects, home improvement needs, large construction projects, or handymen who need to lock the drill bit safely into the drill.