Description: This dual drive ratchet head wrench works with any 1/4 hex shank screwdrivers and 1/4 square drive sockets. Perfect for tight spaces, the 15 tooth ratchet only needs a small swing arc to work, and the travel direction can be easily changed with using the thumb switch. Specification: Material: Chrome Vanadium Steel Ratchet: 15 teeth Feature: Magnetic Length: 103mm(4 inch) Width: 17 mm Thickness: 8 mm Interface diameter: 6.35 mm (1/4 inch) Package including: 1PC ratchet wrench Note: 1. Conversion: 1 inch = 2.54cm, 1cm = 0.393 inch es2. Please allow a bit error due to manual measurement. Please make sure you don't mind before bidding.3. The color may have different as the display difference, pls understand.