UNIVERSAL COMPATIBILITY Works with all diesel (DERV) engines and sleeved cylinders Measures cylinder sleeve height, bore depth, piston-to-deck clearance, and valve protrusion HIGH-PRECISION MEASUREMENT✔ 0-1.00" range with 0.001" graduations for ultra-fine accuracy 0-100 scale ensures repeatable, consistent readings Perfect for engine rebuilding, machining, and performance tuning DURABLE & RELIABLE CONSTRUCTION Made of hardened steel & aluminum alloy for extreme durability Sealed dial with tempered glass—scratch-resistant & clear visibility Shock-absorbing base & reinforced housing prevents deformation USER-FRIENDLY DESIGN Rotating bezel with clamp for quick zero adjustment Interchangeable limit markers for easy reference points Automatic centering & 1/4" adjustment hole for fast, accurate readings COMPLETE PROFESSIONAL KIT Includes: 4374 gauge, 4375 base, flat & pointed contacts, hex wrench, and carrying case Portable & organized—perfect for workshops or on-site diagnostics Trusted by mechanics & engineers for precision and reliability 0-1.00" Professional Cylinder Bore Gauge Kit