Regis Manufacturing KWR3990 2" x 90° Ruby Valve Seat Grinding Wheel

The Regis Manufacturing KWR3990 is a premium quality 2-inch ruby valve seat grinding wheel designed for professional engine builders and machine shops. This 90-degree angle grinding wheel features a specialized ruby abrasive compound that excels at grinding harder valve seat materials while delivering superior performance between general purpose and stellite applications.

Key Features:

• 2-inch diameter grinding wheel with 90-degree angle profile
• Ruby abrasive compound for harder valve seat materials
• Excellent for seats with hardness between standard and stellite
• Can be used as a high-quality finishing stone
• Designed for use with valve seat grinding machines
• Professional-grade construction for engine building applications

Ruby valve seat wheels offer aggressive cutting performance on hard-to-grind valve seats while providing a quality finish. Ideal for automotive, marine, and performance engine work requiring precision valve seat reconditioning. Manufactured by Regis Manufacturing, a trusted supplier to the engine building industry since 1959.