The Lewis Machine Company Circular Blade Sharpener will reduce sharpening time by 50%, hollow grind bevel (holds edge longer - less grinding), sharpens all size circular blades, easy to operate, quick adjustment for single or double bevel, simple bevel width adjustment, safer for sharpening large blades, eliminate out of round blades, low maintenance, electrical requirements: 110V; single phase, machine dimensions: height = 26" width = 20" x 36", stones: Norton 32A60 - heat resistant stone and has been thoroughly tested and approved by the industry.  For more details call 1-706-754-4624 or visit www.lewismachineco.com today!