"MORE TORQUE THAN EVER BEFORE. Opti-Grip hex bit sockets are designed to replace standard hex tools with more grip on damaged fasteners and prevents fastener rounding","FASTENER ROUNDING PROTECTION. Opti-Grip prevents the rounding of hex fasteners while being able to remove extremely compromised hex fasteners","INNOVATIVE DESIGN. The unique, patented, bi-directional geometry delivers up 50% more prevention torque on good hex fasteners vs standard hex tools, while applying up to 400% more torque on damaged fasteners vs standard hex tools","TIGHTENS DAMAGED FASTENERS. Compromised fasteners can be re-inserted in a pinch if a suitable replacement is not available","QUALITY MADE TO LAST. Each bit is precision machined from S2 steel for increased strength and durability as well as coated for increased corrosion resistance","EASY ID FOR PRODUCTIVITY. All sockets have oversize, roll stamped, and ink filled size markings for greater visibility and nickel chrome plating ensures corrosion resistance","MASTER HEX BIT SOCKET SET. Includes sizes: 1.5MM - 19MM metric and 1/16\" - 3/4\" SAE hex bit sockets 35 PIECE 1/4", 3/8", AND 1/2" DRIVE MASTER OPTI-GRIP HEX BIT SOCKET SET SBS35OGB | Matco Tools