8-pc 3/8" and 17mm Dual Drive Opti-Grip Star and Hex Bit Sets, Nos. SB17TX8OGB and SB17XYM9OG

The Matco Tools 8-pc 3/8" and 17mm Dual Drive OPTI-GRIP Star and Hex Bit Set, Nos. SB17TX8OGB and SB17XYM9OG, are designed to give automotive technicians a reliable way to tackle fasteners, even damaged ones. Patented OPTI-GRIP hex and star geometry delivers up to 50 percent more grip on new fasteners and up to 400 percent more grip on damaged fasteners versus standard tools, according to Matco, preventing rounding and improving removal success. Each S2 steel dual-drive bit measures just 27mm long while retaining a full-length tip across most sizes for complete contact in tight engine bays. Multiple drive options include 3/8" internal square and a 17mm external hex. Large laser-etched size markings boost visibility.