The specification of the number of screw holes, center-to-center location of those holes, location of the overall pattern, and threading of the mounting holes of a wiper die. Certain patterns are quite common, such as two 3/8″-16 mounting holes on 1.5″ centers for smaller wiper dies (under 3″ tube diameter) and two 1/2″-13 mounting holes on 2″ centers for larger wiper dies (over 3″ tube diameter).
FREE Tube-Bending Guide Download:
A complete guide to the principles of the 4-Step set-up for tube-bending tools
This is a printable handbook showing how to implement in four standardized steps the “forward mandrel” set-up for rotary-draw tube-bending machines and establish process control over the so-called black art. The procedure is based upon the guiding principle that the tools make the bend and takes advantage of the inserted design of modern mandrel tooling.