Park's Screw-Type Chain Tool is the ideal shop tool for easy and reliable chain maintenance and repair. The sliding shelf makes it compatible with 1/8th-inch chains and all 3/32nd-inch chains, from 5- to 11-speed. It's made from investment-cast tool steel and has long vinyl-coated handles and fine threading for easy chain pin removal. It also includes a stiff-link loosener and comes with an extra pin.