Feature 1Suitable for degreasing of engine cylinders with diameters of 3/4 in to 21/2 in and 11/4 in to 31/2 in. 2Flexible shaft, easy to use and automatic centering. The knurling wheel can adjust the spring pressure of the stone on the cylinder hole. 3Remove carbon deposits and hot glazes from cylinder holes. Ideal for removing rust deposits from older re builds. 4Adopt premium iron material, antirust, anticorrosion and durable, ensures long lifespan. 5Ergonomic design, easy to operate, labor-saving, high work efficiency, bring much convenience for you.Condition: Brand NewItem Type: Cylinder Honing ToolMaterial: IronManufacturer Part Number: 88233Range: Approx. 51-165mm/2-6.5inUsage:Step 1.Spray lubricant on the stones or the cylinder bores. Get the hone set up on the drill.Step 2.Insert the engine hone into the cylinder and run the drill at low speed between 300-700 RPM. Move the hone up and down around once a second.Don't push or pull the stones more than 3/4 inches out of the cylinder. Don't run the engine hone for more than 3 mins.Step 3.After honing, use a paper towel to wipe out the inside of cylinder. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Cylinder Honing Tool