Check the listing for details. Gryphon Twister Convertible Grinder. Condition: New. Listed at 267.98 USD. By simply rotating the base, the grinding surface converts from horizontal to inclined. For the first time, you can sit while grinding. Even if you stand, the inclined work surface reduces fatigue because you no longer need to stoop over your work to see what you are doing.An electric pump supplies a constant flow of water directly to the bit regardless of saw orientation. Because of the way the water is directed onto to the bit, there is virtually no splash. No sponge is required in this arrangement. Pump must be primed first.Horsepower: 1/5 HPWork Surface: 13.5" x 10.5"Grinding Bits Included: 1" & 1/4" Bits Shipping Instruction: Signature RequiredFeatures:- Grinding surface converts from horizontal to inclined so you can sit while you grind- Face Shield & Second Story Platform Included- Powerful DC Motor- Bits interchangeable with all popular brands- Water tower cooling system extends life of bitsSpecifications:- Voltage: 110 volt.- Power: 110 VAC- RPM: 3000- Weight: 14 Lbs.- 5 year limited warranty.