Felo Series 438 Ergonic 1/4" bitholder with QuickLock 1/4" Hex Bit Holder - standard sized handle, hex shaft, QuickLock bit attachment OAL: 216mm Ergonic, the first handle that adapts to the users hand Full length, impact proof handle core is coated with elastic, scratch resistant elastomer containing cells of highly flexible plastic Smooth, seamless handle for maximum comfort Hand and handle interlock, causing less strain Anti-roll handle design Hanging hole for easy storage or inserting lever