TUF - Heavy-Duty 12-Piece Sioux Style Valve Seat Grinding Stones with Dresser Stand, 11/16" Thread, Aluminum Oxide Grinding Wheels for Valve Seat Reconditioning, Engine Cylinder Head Repair

Upgrade your valve seat grinding setup with this Heavy-Duty 12-Piece Sioux Style Valve Seat Grinding Stone Set with Dresser Stand. Designed for automotive engine rebuilding and cylinder head servicing, this kit provides multiple grinding stones for valve seat reconditioning applications. The 11/16" threaded stones are designed for compatible Sioux-style stone holders. The included dresser stand helps maintain the shape and cutting surface of the grinding stones, allowing the stones to be dressed as needed for continued grinding performance. This kit is suitable for automotive repair shops, engine rebuilding, cylinder-head work, machine shops, and professional mechanics looking for a practical valve seat grinding accessory set. 12 Grinding Stones in 80 Grit Aluminum Oxide: Includes 12 grinding stones 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" and 2-1/2" sizes. Stones are 80 grit medium aluminum oxide pink with 45 degree seat angle on standard 11/16" Sioux thread for grinding and finishing stages 11/16 Thread for Standard Sioux Style Mounting Setup: Designed with standard 11/16” thread for Sioux style systems and compatible valve seat grinders. Includes star drive ball holder for secure stone mounting and stable rotation during grinding process with precision in machine shop applications, especially in automotive works.

• 12-PIECE GRINDING STONE SET: Includes 12 Sioux-style valve seat grinding stones designed for valve seat reconditioning, engine rebuilding, and cylinder head repair.
• 11/16" THREAD COMPATIBILITY: Stones feature an 11/16" thread size for use with compatible Sioux-style valve seat grinding holders.
• HEAVY-DUTY CONSTRUCTION: Made for demanding automotive and machine-shop applications, providing reliable grinding performance and long service life.
• DRESSER STAND INCLUDED: Includes a valve seat stone dresser stand for reshaping and maintaining the grinding stone profile. Dressing helps maintain consistent cutting performance.
• VERSATILE AUTOMOTIVE APPLICATION: Suitable for professional mechanics, engine rebuilders, automotive workshops, cylinder-head specialists, machine shops, and experienced DIY users.
• 12 Grinding Stones in 80 Grit Aluminum Oxide: Includes 12 grinding stones 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" and 2-1/2" sizes. Stones are 80 grit medium aluminum oxide pink with 45 degree seat angle on standard 11/16" Sioux thread for grinding and finishing stages
• Stone Dresser Stand for Reshaping & Maintaining Grinding Accuracy - Used to maintain stone geometry and restore surface condition during repeated grinding cycles. Helps achieve consistent seat angles and smoother finishes by dressing stones as required in workshop applications