High Quality Low Price Small Manual Hand Wheel Worm Adjustable Height Screw Jack
Screw Jack Machnist Mill Lathe Tool Description: Jack screws are a very handy tool for leveling work on machine tables or fixtures, setting up machinery, and general use in the tool room and machine shop. Each jack is designed with a quick acting height adjustment through a fine adjusting screw Vise Accessories Available in 4 adjustable sizes Features a height locking ring Characteristic: adjustable height Hardness of heat treatment: HRC32+5 degree Wear resistance, hardness and high load-bearing capacity of surface dyed black skin film treatment Usage: Wrap the required height by hand, then screw down the middle nut and lock the main body at the bottom to fix the height, so as to prevent the screw from changing its height during use. Actual load-bearing capacity = 1.2 times rated