• S2 modified steel and an optimised heat treatment process results in extra-hard quality for adequate performance • The tapered torsion zone copes easily with torque peaks, fulfilling all tasks • Ideal for tough drilling tasks, as in metals, masonry, plastic and wood • Compatible with all standard 1/4" hex shank impact drivers and drills Cash on Delivery 7-Day Easy Returns Free Delivery Fulfilled by Fepy Secure Checkout 100% Genuine & Warranty Security & Privacy Secure Payments 24/7 Online Support About this item • S2 modified steel and an optimised heat treatment process results in extra-hard quality for adequate performance • The tapered torsion zone copes easily with torque peaks, fulfilling all tasks • Ideal for tough drilling tasks, as in metals, masonry, plastic and wood • Compatible with all standard 1/4" hex shank impact drivers and drills