What is the applicable sandpaper size?
The hook and loop base grips the 8-hole 5" sanding pads securely, and the pads are comfortable to grip.
What led you to use this product?
Got these because I was doing a lot of hand sanding. I hadnt tried the round one yet. But the one that shaped kind of like your hand works very well. They use 5-inch disc like you use an orbital sander so usually have some of them around.
Applicability of the back of the tool?
There comfortable and I need that my hands are virtually useless nerves are damaged its hard for me to hold things for long these just fit your hands like a glove.