Matweld's 8” Cup Stone Grinder is designed for hydraulic use in grinding the tops of frogs and rail. The unique stone adjustment feature allows the operator to easily adjust the guard as the stone wears without the need for wrenches. The double handles give the operator complete control of the tool. Weight: 28 lbs. Designed for 10 GPM, 2000 PSI. Shop IRS’ railroad switch keys and locks for sale for any additional needs.