2 in 1 Drill Chuck Ratchet Wrench Ordinary drill chuck wrenches are laborious and time-consuming to replace the drill bit. Then our 2 in 1 drill chuck ratchet wrench can help you solve this problem! Size Two sizes help you work perfectly. Small head diameter: 12.7mm, large head diameter: 17.5mm. Dual-purpose design With a positive and negative ratchet switch, it can rotate forward and reverse, and quickly loosen and tighten the drill chuck, which is simple and convenient. Function Use to tighten or loosen the chuck. Perfect for most electric drills and power tools. The ratchet function makes changing drill bits more efficient. MaterialMade of high quality steel, wear-resistant and has a long service life. The handle is non-slip and comfortable to hold. Description: Made of high quality steel, wear-resistant and has a long service life. The handle is non-slip and comfortable to hold. Use to tighten or loosen the chuck. Perfect for most electric drills and power tools. The ratchet function makes changing drill bits more efficient. Two sizes help you work perfectly. Small head diameter: 12.7mm, large head diameter: 17.5mm. With a positive and negative ratchet switch, it can rotate forward and reverse, and quickly loosen and tighten the drill chuck, which is simple and convenient Specification: Material: Plastic, Steel Length: 150mm total length Diameter of both ends: small end 12.7mm, large end 17.5mm. Package includes: 1 * 2 in 1 Drill Chuck Ratchet Wrench