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Business & Industrial / Building Materials & Supplies / Other Building Materials
Our 4 Inch and 5 Inch Diamond Polishing pad working layer thickness is 3mm. They are NOT the 2.8 cheaper type (most of the seller are selling 2.8 cheaper type pad). Pad can be wet or dry use (wet use recommended). Ideal speed of grinder or polisher is between 2800 and 5000 RPM. DO NOT use high speed grinder or polisher (6000 7500 11000 RPM grinder is NOT appropriate).