6 Pieces Universal Chuck Key Drill Chuck Keys Chuck Keys for 4mm 6mm 10mm 13mm 16mm 20mm

【Chuck Diameter】- 3/4"(20mm) / 5/8"(16mm) / 1/2"(13mm) / 3/8"(10mm) / 1/4"(6mm) / 5/32"(4mm) for different types of drill bits.

【Material】- Made of solid carbon steel, coated with durable material. Anti-slip and anti-skid design to reduce stress damage within a certain limit.

【Storage and Use】- The small wrench makes it easy to store and use. The ideal kit to hold your drill bit in place.

【Easy to Use】- The drill bit clamping wrench is comfortable to hold, the collet can be tightened and loosened. The drill bit replacement is convenient and helps reduce stress damage within a certain limit.

【Wide Use】- The drill bit wrench is suitable for most electric drill chuck tools and heavy duty collets; The drill bit wrench replacement can be compatible with most brands of power tools to meet your needs for replacing lost or damaged chuck keys.