About This

• Heavy Coverage Valve Grinding Stones: Used for grinding and finishing valve seat surfaces during cylinder head repair, valve seat refacing and engine rebuild work in workshop environments. Includes 24 grinding stones configured for valve seat grinding across extended usage cycles using Sioux style systems and compatible setups.
• 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.
• 80 Grit Aluminum Oxide Stones for Controlled Grinding: Engages valve seat surfaces during grinding and finishing stages with medium grit composition. Made from aluminum oxide with verified vitrified bond, used for material removal and finishing depending on dressing condition, pressure and setup in workshop operations.
• 11/16” Thread for Standard Sioux Style Mounting Setup: Designed for compatibility with standard 11/16” thread stone holders used in valve seat grinding systems. Supports stable mounting and proper engagement during grinding cycles across Sioux style and compatible setups used in automotive machine shop environments.
• Stones with Angle & Valve Seat Profile Control: Stones can be dressed to required angles while maintaining thread integrity during repeated use. Supports adjustment based on valve seat profile and grinding requirements, enabling controlled seat formation across different engine types and repair applications.

Overview

• Grit Material : Aluminum Oxide
• Brand : RAHISH TOOLS
• Compatible Devices : Sioux Grinding Machine
• Grit Type : Medium
• Grit Number : 80