Hot Cams Valve Shim Kit Honda / Kawasaki / Suzuki / Yamaha The Hot Cams Valve Shim Kit provides everything needed for accurate valve adjustments in engines. This kit features shims with a 9.480mm outer diameter available in sizes from 1.20mm to 3.50mm, increasing in precise 0.05mm steps, and offers three shims per size. With a hardness rating of 55-60 Hrc, it guarantees long-lasting use and consistent performance. The kit is available as a comprehensive set, ensuring you have all the sizes you need at hand. Features: 9.480mm OD 1.20 to 3.50 mm Kit .05 mm Increments 3 of each shim Hardness 55-60 HRC Forged from 4140 cold rolled steel Heat treated for improved strength and longevity Laser etched size on each shim Sold as a kit