G4055B - Gunson Hi Gauge & Colortune Plug Adaptor Kit 12mm Thread G4055B
A kit to convert the thread on the popular Gunson Colortune and Hi Gauge Compression Tester.
Fits most sizes of modern spark plugs for modern and classic cars as well as motorcycles, garden machinery and boats.
1 x Thread Adaptor 12mm
1 x Gas Seal Washer
1 x Hex Key
Compression tester adaptor
For use on colortune and Hi Gauge
Suitable for most modern and classic cars
Available in additional sizes 10mm, 12mm, 14mm and 18mm