Regulating Feed Wheels 12″ x 4″ x 5″ Type 1. Size: 12″ x 4″ x 5″ Specification: A80 R-R Wheel Type: Type no.1 (No Recess) Bond: Rubber åtto abrasives Regulating Feed Wheels (also known as control wheels) are manufactured to ISO 9001 standards and are balanced for optimum performance. They are suitable for in-feed (Plunge grinding), end-feed and through-feed centerless grinding applications, and provide: – Consistency – Optimum Gripping Power – Longer Wheel Life – Superior Performance