Sioux Valve SEAT Grinder 9 Pilot Set 5.5,6,6.5,7,8,9,10,11,12 MM

Sioux Valve SEAT Grinder 9 Pilot Set 5.5,6,6.5,7,8,9,10,11,12 MM Sioux Valve Seat Grinder 9 Pilot Set (5.5–12 mm, 0.385” Top) The Sioux Valve Seat Grinder 9 Pilot Set is a precision-engineered tool set designed for accurate valve seat grinding and alignment in automotive engines. This set includes 9 high-quality pilots ranging from 5.5 mm to 12 mm, making it suitable for a wide variety of valve guide sizes in cars, bikes, and small engines. Manufactured from hardened alloy steel, these pilots provide excellent durability, wear resistance, and long service life. The 0.385” top size ensures compatibility with standard Sioux-type valve seat grinding machines and holders. Each pilot is designed with a self-centering taper, allowing precise alignment of the grinding stone with the valve seat. This ensures a perfect seal between the valve and seat, improving engine compression, performance, and longevity. Ideal for professional mechanics, engine rebuilders, and workshop use, this pilot set is essential for achieving consistent and accurate valve seat finishing during engine repair or overhaul.

• Type: Valve Seat Grinder Pilot Set
• No. of Pieces: 9 pcs
• Pilot Sizes: 5.5 mm, 6 mm, 6.5 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm
• Top Size: 0.385" (standard Sioux type)
• Material: Hardened alloy steel (for durability & accuracy)