M18x1.5 No Go Single Ring Thread Gage

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Price excluding tax / DOM-TOM €107.50

Thread ring gage "NO GO" M18x1.5 6g.

  • The essential tool for making the diving tank visual inspection of the M18 diving cylinder valves with a thread pitch of 150 (1.5mm).

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M18x1.5 No Go Single Ring Thread Gage

Threaded ring M18x150 6g for diving tanks visual inspection

The threaded ring gauge M18x150 6g for diving tank inspection allows to check the threads of M18 diving cylinder valves with a pitch of 150 (1.5mm).

M18x150 cylinder valves must be checked once a year during the annual TIV of the cylinders.

There is also a "DO NOT ENTER" ring which is necessary to be fitted to check the valve.


  • The control of threads on diving cylinders requires TIV (Technician in Visual Inspection) training, given by the FFESSM. To be seen on www.ffessm.com
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