The Park Tool ATD-1.2 is a shop quality, adjustable torque driver that limits torque applied to fasteners, preventing over-tightening and damage to lightweight components. The ATD-1.2 features all-metal internal construction with a comfortable, ergonomic composite molded grip. For precision, each tool is assembled and calibrated at our factory in Minnesota. Learn more. bit.ly/37bnQkF | Park Tool

The Park Tool PK-4 Professional Tool Kit includes 88 of our best, carefully chosen tools selected with versatility in mind. A great way to outfit a pro bench or to set up a fabulous home workshop, the PK-4 is an impressive set of tools that can help you perform hundreds of repairs and maintenance tasks. An investment you’ll appreciate for decades all housed in a large, rugged tool box. Learn more: bit.ly/3boUtft | Park Tool

Many modern derailleur chains use a "master link" (also known as a "quick link" or "power link") that allows the chain to be installed and removed without driving out a rivet. The Park Tool MLP-1.2 Master Link Pliers make removal and replacement of these master links quick and effortless. Simply insert the specially sized jaws into the master link. Then squeeze the handles to open or pull the handles to close the link. Compatible with 5-to-12-speed derailleur chains that use a master link, inclu