>>>WIDE COMPATIBILITY： Compatible with all diesel engines with sleeved cylinders gauge. Pointed contact for cylinder sleeve height. Flat end contact for counterbore depth. It is an essential tool for accurately measuring cylinder sleeve height, counter bore depth, top dead center, piston-to-deck height, and valve protrusion. >>>SUPERIOR MATERIAL: 6434 Sleeve Height and Counter Gauge is made of superior stainless steel frame, valve stem, spindle, and contact points. Waterproof and dustproof, high performance and long service time. >>>GREAT PERFORMANCE: The pointed contact point is designed for measuring cylinder sleeve height gauge, while the flat end contact measures counter-bore depth. Cylinder bore gauge also enables measurements of top dead center, piston-to-deck height, and valve protrusion.The rotatable bezel with clamp for easy zero set. The limit markers can be moved without interfering with the clamp. Lug back with 1/4 hole.  >>>EASY TO USE: Range: 0-1"; Graduations: 0.001". Reading: 0-100. the sleeve height gauge provides accurate readings. Includes 4374 Dial Indicator, 4375 Base, 4230 Flat Contact Point, 4378 Pointed Contact Point, Hex Wrench and Carrying Case. >>>PREMIUM SERVICE: If you encounter any problems or you're not 100% satisfied with this product, please contact us in time, we will deal with you as soon as possible.No worry about buying!