Review on DEWALT DW4945 2 Inch Backing Locking by Kyle Larjin

This 4-1/2" Rubber Back-up Pad was a perfect fit for my Dewalt DC410 18V cordless sander. Tool. It slid right onto the shaft and the lock nut was pressed firmly against the 36 grit grinding wheel I had to use it with. Turning the grinder shaft securely tightens the locknut when powered on. If you wish to remove the backing pad or change the grinding wheel, simply depress the shaft detent on the grinder and pull back the entire pad to loosen the locknut so you can do the remaining part by hand Unscrew so no tools are required to install or remove. The pad is ideal for 4-1/2" grinding wheels with 7/8" center holes. I had no problems with the disc slipping or breaking in the center hole under the locknut collar. The rubber disc has metal reinforcement, the ring disc is built into the base and is also fairly stiff but still flexible enough on the outside edge to allow for some fairly aggressive grinding and material removal. The pillow is made in China but appears to be made of decent materials and is usable. Overall I was happy with it for my application and would recommend it to someone with the same Dewalt parting tool without a problem.