Tianli Resin Bond Diamond Drum Wheel：

Used for fine grinding and polishing of inner curved surfaces and hole sidewalls on stone. Effectively reaches dead corners that flat pads cannot access, ultimately achieving a mirror-like gloss on the inner hole surface.

Resin bond offers finer texture and better flexibility compared to metal bond, resulting in better surface gloss and preventing scorching or discoloration. It is ideal for refining marks left by coarse metal grinding.