Description Ordinary drill chuck wrenches are laborious and time-consuming to replace the drill bit. Then our 2 in 1 Drill Chuck Ratchet Spanner can help you solve this problem The double-head design is suitable for most chucks, and the ratchet function allows you to work faster. MAIN FEATURES [Material] Made of high quality steel, wear resistant and has a long service life. The handle is non-slip and comfortable to hold. [Function] Use to tighten or loosen the chuck. Perfect for most electric drills and power tools. The ratchet function makes changing the drill bit more efficient. [Size] Two sizes help you work perfectly. Small head diameter: 12.7mm, big 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. SPECIFICATIONS Material: Steel Length: 150mm in total length Diameter Of The Two Ends: small end 12.7mm, large end 17.5mm. Package Includes: 1*2 in 1 Drill Chuck Ratchet Spanner