This kit includes two 1-1/8" stones, a 2" stone, a 3" stone, three 4" replacement head brushes.
Each tool is made of premium steel with anti-rust coating, providing good strength, durability and longevity.
This kit is used to deglaze engine cylinders 3/4 inches to 7 inches in diameter, with 3 pieces adjustable stones which can be replaced easily.
The adjustable tension nut allows you to control the spring pressure of the stones against the cylinder bore, can turn both clockwise and counter-clockwise.
Perfect for removing carbon, rust and heat glaze deposits from your caliper and piston cylinder walls.