The correct tool for staking 1911 grip bushings. Tool accepts a 1/8" punch and holds it in the correct position for staking. To use, put bushing in place (support the outside), slide staker into bushing from the inside of the frame using the staker's handle, insert 1/8" punch through the bushing or hole on the opposite side of the frame and down into the staker. The staker has 8 segments with 90 degree cuts for maximum bushing to frame contact.