Fowler 52-585-070-0, Magnetic V-Block With On-Off Switch

Workpiece Holder: Holds varied shaped workpieces so that light machining operations such as grinding, boring, and tapping can be carried out with considerable savings in set-up time, Magnetic Base: It features contact faces that are precision ground; the V-holder will hold itself to work on any flat ferrous surface; with on and off switch for positioning and removal, Release Switch: Switchable magnet base exerts a magnetic force on the upper, lower, and V-channel surfaces; magnetic force can be switched on and off using a lever, Dimensions: This magnetic V block holder measures 22-3/8" wide x 4-7/8" long x 2-7/8" high; working surfaces are hardened to 35-45 HRC, Accuracy; Top and bottom V and all sides held to 0. 0008" accuracy.