Simpson Strong-Tie® Quik Drive auto-feed screw driving systems turn repetitive fastening into opportunities to increase efficiency and save time. The TFSTEP attaches to the G2 and G3 Quik Drive extension accessories allowing additional pressure to be applied by stepping on its horizontal steel plate while driving fasteners. Designed especially for driving fasteners using the Quik Drive PROHSD60/PROHSD60M and PROHSD75/PROHSD75M Wood-to-Steel auto-feed screw driving systems.