Valve Seat Grinder Stones Kit For Automotive Cylinder Heads Sioux Style Combo With 12 Grinding Stones 6 Pilots 2 Stone Holders And Drive Ball 80 Grit Aluminum Oxide 45 Degree 11 16 Inch Pro DIY Friendly Set

Sioux-Style Valve Seat Grinder Kit with 12 Stones
✔️ 12 grinding stones, 6 pilots, 2 holders, 80 grit, 45° seats

Compact Sioux-style valve seat grinder kit designed for automotive cylinder head work, typically used in workshop environments to reface valve seats and align guides during engine rebuilds.

✅ 12 grinding stones, 80 grit aluminum oxide, 45° seat angle, 11/16 in (17.46 mm) thread
✅ 6 straight pilots (4.5 mm-8 mm) for valve guide alignment, top 0.385 in (9.78 mm)
✅ 2 stone holder sets with drive ball for stable mounting
✅ Sioux style thread system compatible with workshop setups

💡 What is a valve seat grinding kit used for in automotive engine work?

It’s a handy setup for resurfacing valve seats and aligning guides during engine rebuilds.

• handy for precise seat grinding in cylinder heads with Sioux-style systems
• includes 12 stones, 6 pilots, 2 holders and drive ball for stable operation
• 80 grit aluminum oxide stones with 45° seats for consistent finish
• concentric alignment aids with adjustable pilots across multiple sizes

✝️