Regis Manufacturing KWR45 2-1/8" x 45° Ruby Valve Seat Grinding Wheel

The Regis Manufacturing KWR45 is a 2-1/8" diameter, 45° Ruby Valve Seat Grinding Wheel designed for professional engine builders and automotive machine shops. This premium ruby abrasive wheel is engineered for valve seat material hardnesses that fall between general-purpose and stellite-grade seats, making it the ideal intermediate-grade choice when standard wheels lack the cutting ability needed.

Ruby valve seat wheels deliver a superior combination of cutting speed and surface finish quality. In addition to primary valve seat grinding, the KWR45 also serves as a high-quality finishing stone, providing the smooth, precise seating surface required for proper valve-to-seat contact and combustion chamber sealing.

Key Features:

• Size: 2-1/8" diameter x 45° angle
• Abrasive: Ruby — suited for seat hardnesses between general-purpose and stellite
• Dual-purpose use: Functions as both a valve seat grinding wheel and a quality finishing stone
• Sioux-style compatibility: Designed for use with standard Sioux-style valve seat grinding equipment
• Long-lasting: Fast-cutting abrasive formulation provides extended wheel life
• Sold individually

The KWR45 is part of Regis Manufacturing's extensive line of valve seat wheels, a trusted name in the engine building industry since 1959. Whether rebuilding passenger car, truck, or performance engines, this ruby grinding wheel delivers the precision and reliability that professional machine shops demand.