3/8" Drive x 21mm Standard Universal GRE1021UM Compounds Includes sizes 1/16" to 3/8"

Includes sizes 1/16" to 3/8" 3/16" and larger have 3-flatted shank for better chuck grip

Special shaped plastic handle grips give secure grip

Universal lobular design fits all types of fasteners

Tap and die selection chart for convenience reference

universal joint

3/8" Drive x 21mm Standard Universal GRE1021UM Compounds Includes sizes 1/16" to 3/8"3 8" Drive x 21mm Standard Universal Features and Benefits: Standard length 6 point impact socket Made from high quality chrome molybdenum steel Heat treated for strength and durability Size markings are hard stamped into the socket for easy identification Black oxide coated for resistance against rust and corrosion 3 8" Drive x 21mm Standard Length Universal Impact Socket. Our impact sockets grip the fastener across a broader contact area, reducing