Bestgle 0.3 6.5mm Keyless Drill Chuck Conversion Tool Quick Change Converter Screwdriver Driver Adapter with 1/4'' Hex Shank

Clamping range: 0.3-6.5mm；Handle specification: hex handle (1/4-6.35mm) One-handed Drilling: Gives you the freedom of one-handed drilling and is ideal if you are working in tight spaces Keyless Design: Easily the locks and releases drill bits, quickly convert your quick change hex shank driver unto a drill Made of aluminum alloy, strong, durable and anti-rusting, unlimited used in automotive, garages, warehouses, offices, homes etc Universal driver 1/4-inch hex shank snaps easily into the power screwdriver.(NOTE: It can NOT be used counterclockwise!!)