3/8" Drive x 21mm Deep Screwdriver Sets Standard 6-point design for use

Standard 6-point design for use with 3/4" drive tools

smooth finish provides resistance against rust and corrosion

Great DMM for the professional technician

Dual durometer soft grip with hot stamped logo and part number

Set contains the following sizes: Fractional Sizes: 7/16

3/8" Drive x 21mm Deep Screwdriver Sets Standard 6-point design for useFeatures and Benefits of 3 8" Drive x 21mm Deep 3 8" Drive x 21mm Deep 3 8" Drive x 21mm Deep Length 6 Point Impact Socket. Our impact sockets grip the fastener across a broader contact area, reducing chance of rounding off fasteners. They also allow up to 20% more torque to be applied than on other impact sockets. The shift in pressure allows us to reduce the socket wall thickness, increasing access to tight areas.