Gunson G4055D Colortune Adaptor Kit 14mm Long Reach

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. Contents: 1 x Thread Adaptor 14mm x 18mm long 1 x Gas Seal Washer 1 x Hex Key Compression tester/colortune adaptor14mm to 14mm longThread sizeLong reach (18mm thread length)A compression test adaptor for specific automotiveExtends the thread on Colortune and Hi Gauge Comp