Check the listing for details. Reconditioned Weinig Rondamat 925 Profile Grinder/Sharpener. Condition: Used. Listed at 2000.00 USD. Model: Rondamat 925. Made in: Federal Republic of Germany This is a used Weinig Rondamat 925, a high-precision profile grinder designed for sharpening and producing custom profile knives. Electrical connection required: 230V, 50Hz.