Quality valve chuck wanted

[Loaded Dice]

Can somebody point me in the direction of a quality valve chuck that can be attached to an existing air pressure guage? The ones at the servo's with the digital pressure readout all seem to have a good snap on chuck that doesn't leak, holds tight, but every one I buy I still have to hold cos the bastard leaks. Thanks.

 

[lowandslow]

Nitto brand are pretty good and are one of the industries standard fittings. Tho if you've got cheap brand air tools you might need to change your fittings.