6 Pieces Universal Chuck Key Drill Chuck Keys Drill 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 durable material. Anti-slip and anti-slip design to reduce stress damage within a certain limit.【Storage and Use】- The small wrench makes it easier to store and use. The ideal kit to hold your drill bit in place.【Easy to Use】- The drill bit wrench is comfortable to hold, the collet can be tightened and loosened.Replacing the drill bit is convenient and helps reduce stress damage within a certain limit. 【Wide Use】- The drill bit wrench is suitable for most electric drill tightening tools and heavy duty pliers; The drill key replacement can be compatible with most brands of power tools to meet your lost or damaged chuck key replacement needs.