Specially designed Palm Saver Cap prevents blisters in the palm of your hand. Cap does not turn as you push on the cap and turn the handle.Easy Guide Collar provides greater control by maintaining full contact between the Bit and the Screw. Features ZAD 8 Zinc Alloy SOLID-CORE Ratchet that delivers over 25 Nm of Torque Strength. Precision 28 Tooth Ratchet Design makes driving fasteners faster and easier.