... resin bond and high quality fiber glass nets. grinding wheel,T27 and T42 depressed center wheelsFeatures: high strength,durability, ... steel,like steel pipe, steel bar,the burr and gross edge of steel plate,steel weld dregs,and etc. Materials: ... and GC for glass,stone and etc. T27 Depressed Center Wheel 100 x 6 x 16mm4" x 1/4" x ... x 1/4" x 7/8"50pcs/ctnT42 Depressed Center Wheel 100 x 3 x 16mm4" x 1/8" x ...