TUF - 24 Pcs Sioux Style Valve Seat Grinding Stones, 80 Grit Aluminum Oxide Abrasive Stones, 11/16" Thread, Replacement Stones for Valve Seat Grinder, Cylinder Head & Engine Repair, Automotive

Upgrade your valve seat grinding setup with this 24-piece set of Sioux-style valve seat grinding stones. Manufactured using aluminum oxide abrasive material, these 80-grit stones are designed for reliable grinding and material removal during cylinder head and engine repair work. Featuring an 11/16" thread size, the stones are intended for use with compatible valve seat grinding holders and Sioux-style grinding equipment. The 24-piece quantity provides a convenient supply of replacement stones for automotive workshops, engine rebuilding, machine shops, and maintenance applications. Whether you are servicing cylinder heads, restoring valve seats, or performing engine rebuilding work, this grinding stone set provides a practical assortment for repeated workshop use. 24 Stone Sets for Multiple Seat Sizes: Supports valve seat grinding across multiple seat diameters with 2 pieces per size for extended usage within a single setup. Includes sizes from 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-5/8", 1-3/4", 1-7/8", 2", 2-1/4", 2-3/8" to 2-1/2" used depending on application requirements.

• 24-PIECE GRINDING STONE SET: Includes 24 valve seat grinding stones designed for professional automotive engine repair, cylinder head servicing, and valve seat grinding applications.
• 80 GRIT ALUMINUM OXIDE: Made with aluminum oxide abrasive material and 80-grit specification for effective material removal and consistent grinding performance.
• 11/16" THREAD SIZE: Designed with an 11/16" threaded configuration for compatibility with corresponding Sioux-style valve seat grinding holders and equipment.
• ENGINE & CYLINDER HEAD APPLICATIONS: Suitable for grinding and resurfacing valve seats during engine rebuilding, cylinder head repair, maintenance, and machine shop work.
• REPLACEMENT & WORKSHOP USE: A practical replacement stone set for mechanics, automotive technicians, engine rebuilders, machine shops, and DIY users who need multiple abrasive stones for ongoing work.
• 24 Stone Sets for Multiple Seat Sizes: Supports valve seat grinding across multiple seat diameters with 2 pieces per size for extended usage within a single setup. Includes sizes from 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-5/8", 1-3/4", 1-7/8", 2", 2-1/4", 2-3/8" to 2-1/2" used depending on application requirements.