Channellock SD-10A 10pc Professional Screwdriver Set | Made in USA | Includes #1x3, #1x6, #2x4, #2x6, and #3x6 Phillips and 3/16"x3", 3/16"x6", 1/4"x4", 1/4"x6", and 5/16"x6" Slotted;

Founded in 1886, Channellock is a worldwide leader in the manufacture of high-quality pliers and assorted hand tools. Now run by the fifth generation of the DeArment family, Channellock tools reflect a tradition of dedication to excellence maintained for well over a century. Over the years, Channellock has obtained several patents including one in 1965 for the conical surface created on the cam side of the pliers when undercut and another in 1984 for the PermaLock fastener found in its Tongue and Groove Pliers. Channellock still manufactures more than 120 different sizes and types of pliers and hand tools at its facilities in Meadville, Pennsylvania.