Teng Tools 4 in Square Extension, 100 mm Overall

The Teng Tools M140021-C series is a 1/4" drive 4" (100mm) extension bar. It has satin finish for a better grip when handling sockets and chrome vanadium steel.

Ball bearing recess on the female end to grip the ratchet or power bar
Ball bearing socket retainer on the male end to securely grip the socket
Supplied with a metal socket clip for use with a socket rail