FD 62465 4-1/2X7/8 60 GRT DISC Perfectly suited for edge breaking work, cutting of difficult-to-machine materials, high alloy stainless steels and high temperature non-ferrous metals such as Hastelloy, Inconel, Nimonic, etcCool grinding properties and a long service life make zirconia fiber discs particularly suited for work on thin-walled anadium steel components and steel or nickel alloys with a high susceptibility to cracking Dia.: 4 1/2 inArbor Diam: 7/8 inGrit: 60Speed: 13300 rpm [Max]Abrasive Material: Zirconia AluminaBody Material: FiberBond: ResinQuantity: 25 per packWt.: 0 lb