The Engine Cylinder Hone Tool Adjustable Deglazer is a 3-piece set with a range of 2″ to 7″ diameters, perfect for honing and deglazing engine cylinders. Made by GearWrench, this versatile tool is designed to smooth and improve engine performance by removing any rough surfaces on the cylinder walls. Easy to use and adjustable, this hone tool helps achieve a professional finish for a reliable engine operation.