Uxcell Sanding Disc Hook and Loop Granularity:400 Grit then use a hammer to

then use a hammer to flatten it or tighten it with pliers

6mm diameter shaft for knob cap

Drilling Diameter: 20mm / 0

05inch (L*W*H)

Wire connection: Red for positive

Uxcell Sanding Disc Hook and Loop Granularity:400 Grit then use a hammer toDescription: [ Material ] Made of silicon carbide, C Weight backing, it is suitable for grinding high hardness materials. [ Reusable ] Hook and Loop design make it easy to stick to the sander and take apart, and it will not fall off during use. [ Convenient ] The grit size number of the grinding disc is printed on the back, which is convenient to find quickly when using it. [ Dry Use ] This grinding disc is designed for dry use, great performance,