The Monument 170 has been especially designed for removing stiff backnuts from awkward placed taps and to make tap installation a more rapid process, this tool is for 1/2-inch. BSP and 3/4-inch. BSP taps. The Monument 170 tool stays in position on the tap tail so can be used with one hand and uses mechanical advantage of the thread of the tap tail to remove stiff nuts.
Ideal for Monument stiffnuts 27 mm and 32 mm and for 1/2-inch BSP 27 mm nuts, 3/4-inch BSP 32 mm nuts. Comes complete with 3/8-inch cordless drill adaptor and comes with full user instruction manual