1/4" Surface Drive x 5.5mm Standard Universal GRE955UMS Transmission Surface drive reduces fastener rounding

Surface drive reduces fastener rounding

Precision machined and heat treated to provide the best combination of hardness

Three largest bits are used with the 3/8" bit holder

3/8" Drive x 3" Extension w/ Friction Ball

1/4" Surface Drive x 5.5mm Standard Universal GRE955UMS Transmission Surface drive reduces fastener rounding1 4" Surface Drive x 5. 5mm Standard Universal Features and Benefits Made of high quality steel (chrome molybdenum); thorough and exact heat treatment insures the correct balance of strength and durability Engineered specifically for use with impact tools, using the most up to date industrial specifications Made to transfer the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength Allows up to