This document clearly states the proof test at 1

Service Parts 1" BSP STREET ELBOW

75"(H) 20"(L) MOUNTING PATTERN (M) (N)  32

Fragrances: Citrus

angle shear and a universal open tooling station designed to accept optional tooling accessories

Grizzly H9112 - 51" x 75" A/O Sanding Belt 80 Grit, 3 pk. atomization-lvmp This document clearly states theThese 51" x 75" 80 grit belts use tough Aluminum Oxide grain, open coated on a very heavy "Y" weight polyester backing with a Resin Bond system that no equivalent product can outperform. The superior backing more than justifies the additional cost over lesser "X" weight backings in their longer belt life and their ability to be washed furthering the savings. Go against Norton R215 or 3M 240D "X" weight products for a sure winner. 3 pack.