Rated 4.5 out of 5 stars.
If you're doing valve work on engines, this combo kit has exactly what you need to get the job done right.
You get an 11/16-inch heavy-duty stone holder with a drive ball—Sioux style—and a set of 14 valve seat grinding stem pilots in a ton of sizes: 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, plus 5/16", 3/8", and 11/32".
The top of each pilot is 0.385 inches, so they work with a lot of different setups.
The pilots are compatible with holders from Sioux, Neway, and Kwikway, so you're covered across brands.
They're made from selected steel—tough and durable for shop use.
Whether you're doing a valve job on a small engine, a car, or a piece of industrial equipment, this set gives you the flexibility to handle a range of valve stem sizes without having to hunt down individual pilots.
A solid, practical kit for any mechanic or machinist who does valve seat grinding.
