Goodson Tools SX1545R 45° Sioux-Style Ruby Valve Seat Grinding Stone 1-1/2 Inch

The Goodson Tools SX1545R is a high-quality 45-degree Sioux-style valve seat grinding stone designed for precision valve seat reconditioning in engine building and cylinder head work. This 1-1/2 inch diameter stone features a ruby abrasive formula that provides excellent cutting performance and long service life.

Key Features:

• 45-degree angle top for standard valve seat grinding applications
• Ruby abrasive formula for balanced cutting and finishing performance
• Deeply set brass bushings expose more abrasive for extended stone life
• Heat-cured permanent epoxy bonding prevents loose bushings
• Pre-trued and balanced for accurate, vibration-free grinding
• Standard 11/16" x 16 thread fits Sioux-style stone holders
• Brass bushings resist galling and seizing to the holder

Goodson valve seat stones are manufactured to exacting standards for professional engine builders and machine shops. The ruby abrasive provides versatility for various cast iron valve seat applications, offering efficient material removal with a quality surface finish. Compatible with Sioux model 1702 stone holders and equivalent aftermarket holders with .385" pilots.