Ktools Universal 4 Way Ratchet Wrench Key Multi-Function Drill Chuck High-Quality Hand Tool for DIY Repairs

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 the drill bit more efficient.Two sizes help you work perfectly.Small head diameter: 12.7mm, big 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.Material: Steel + RubberLength: 15cm/5.91inchSmall Chuck Size: 1.27cm/0.5inchBig Chuck Size: 1.75cm/0.69inch