Gunson G4055C Colortune Adaptor Kit 14mm Taper Slim Features and Benefits: This kit converts the thread on Colortune and Hi Gauge Compression Tester to fit most popular sizes of spark plugs fitted to most modern and classic cars, motorcycles, garden machinery and boats. Compression tester adaptor. 14mm to 14mm thread size. Tapered seat. A compression test adaptor for specific automotive. Converts the thread on 14mm Colortune and Hi Gauge Comp. Contents 1 x 14mm Thread Adaptor. 1 x Gas Seal Washer. 1 x Hex Key.
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