4" Diamond Bowl-shaped convex polishing pad 7 + Backer granite marble

FREE SHIP (United States) The convex / bowl-shaped rubber backer's arbor is 5/8"-11 female thread (NOT M14). Rubber Backer's max velocity is 5000 RPM. Please DO NOT use it with high speed grinder / polisher. Package Includes 4 inch Convex Diamond polishing pads x 7 Pieces 4 inch 5/8-11 Convex Rubber Backer x 1 Piece Item Description 7  grits :  50，100，200，400，800，1500，3000 Diameter:  4 inch（100mm） Backer Thread :  5/8-11 ， Rubber Backer's max velocity is 5000 RPM. Please DO NOT use it with high speed grinder / polisher. Use : ·Installed in the polisher，Grinder，Floor polisher，Air polisher tools etc. Speed / RPM MUST be lower than 5000 RPM. ·Used for grinding and polishing Granite，Marble，Quartz，Terrazzo，Natural stone etc. · Especially for the polishing arc -shaped stone surface， ·For example , cobbles digging pots , wash basin , stone flower pots and fish tank ，Countertop rounded edges . Attention : ·Before use, please make the necessary protective measures !! ·DRY polishing! ·Starting from 50 grit until end of the 3000 grit and Buff ·Usually，does not recommend omitting one of the grit ·Mechanical spindle speed range 2500～5000 RPM ·The correct way to help achieve higher quality results and brightness

Returns Accepted for this item if it's within 30 Days