description left diamond grinding disks - 20 grit double pcd #00 metal bond diamond concrete polishing disk. for national flooring equipment gp3000 concrete grinder and polisher. california proposition 65 warning. features sweep left for national flooring equipment gp3000 concrete grinder and polisher rough profile gp bonus tooling specifications acme tools brand name national flooring equipment acme tools part number 501000-pcd-l assembled weight (lbs) 3 california proposition 65 warning required yes country of origin china globaltradeitemnumber (gtin) 00400010010172 package contents 1 polishing disk package depth 6 package height 3 package weight 4 package weight (lbs) 4 upc 400010010172