4 IN 1 SCREWDRIVER SET 2-TONE SOFT GRIP, ERGONOMIC HANDLE DESIGN INCREASE 40% MORE TORQUE. CrV STEEL BITS 4 IN 1 SCREWDRIVER SET2-TONE SOFT GRIP, ERGONOMIC HANDLE DESIGN INCREASE 40% MORE TORQUE.CrV STEEL BITSCONTENTS,6.3X45MM DOUBLE END BITS: PH1XSL5, PH2XSL61PC SOCKET, 1/4”, CARBON STEEL 4 IN 1 SCREWDRIVER SET