1 X 4 - 1/4" X 72" H THREAD STEEL BRUNNER & LAY

Description:

This threaded drill steel is used for all types of hand drilling in conjunction with a specific set of drill bits.

Features:

    •  It is designed with the shoulder drive connection for easy extraction from the drilled hole.
    •  The mating shoulder of the drill steel and the drill bit carry the brunt of the torque, relieving the stress on the threads

Specifications:

Thread Type H-Thread
Shank Size 1 " x 4-1/4 "
Length 72 "