Wera Big Pack 900 Kraftform Plus Chiseldriver set with racks, ideal for chiselling and loosening seized screws. Hexagonal ‘Pound-thru’ blade designed for heavy duty working situations. Made from high-quality bit material that extends through the handle ensuring a full transfer of force. Integrated impact cap, and ductile tempered material in the handle, help significantly increase the service life, reduce risk of splintering and absorb vibrations. More torque can also be transferred by attaching a ring spanner, or open-end spanner to the integrated hex bolster. Kraftform Plus handle has been designed to fit perfectly into the hand to allow for fast, comfortable and ergonomic screwdriving. The handle hard zones glide across the hand for high working speeds, while soft zones provide grip to ensure high torque transfer and comfort during intensive use. Hexagonal anti-roll feature prevents any unwanted rolling. Wera Black Point tip goes through a refined hardening process to ensure a long service life. Tip provides enhanced corrosion protection and a perfect fit into the screwhead.