Hand held compression tester features a universal rubber cone designed to fit spark plug holes from 10 mm to 7/8''. Composite metric scale reads both PSI and all metric ranges. Great tool for checking cylinder head compression. Milton products cover a broad range of application in various industries, such as automotive, fleet maintenance and construction. We have achieved the industry leader in high quality pneumatic accessories and fitting, proudly living up to our heritage of superior products and reliability. FeaturesHand Held Compression TesterRange of 0 to 300 pounds per square inch or 0 to 2100 kilopascalPerfect for spark plug holesGreat tool for checking cylinder head compressionNot for use with a standard valve coreSpecificationsDimension: 1.25'' H x 2.875'' W x 6'' LWeight: 0.71 Lbs
