Use a brake honing tool to remove carbon, rust, and thermal glaze deposits from caliper and piston cylinder walls; compatible with a power drill, lubricate with brake fluid and operate at low speed while moving up and down within the cylinder bore. Flexible shaft and spread control tension nut allow for efficient cutting and improved maneuverability. Three carbide stones are designed for self-centering to enable quick insertion. Stone sleeves provide added strength and protect the stones when not in use. [Additional Cylinder Compatibility]: This small engine honing tool features a 220 medium grit stone; square ends make it suitable for step cuts and blind end cylinders. [Adjustment Range]: Adjustable design controls expansion and pressure applied to the cylinder wall for a smoother, cleaner finish. Spring-loaded knurled adjustment nut increases tension and securely locks the honing arms in place. Designed for use with cylinder diameters ranging from 3/4 to 1-1/2 inch (1.9 to 6.4 cm). Type: 1-1/8 inch (29-64mm) 3-jaw cylinder bore honing tool Material: Metal Color: Silver Package Contents: 1 x Engine Cylinder Hone Tool Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.