Sonic Foam System - Oil Filter Set - 22 Pieces - 1/3 (Small) hex-plus-freeshipping Outlet = 3/8" Male Plug:

Outlet = 3/8" Male Plug:  This 3/8" plug would connect to a 3/8" Coupler

This adapter can be used to convert any M22 Female (15mm) to M22 Female (14mm)

The C-108 requires about 1-1/4 360 degree turn to get the valve 100% open where a bibb like the P-164 requires roughly a single quarter turn

Apply another coat using the same process

Sonic Foam System - Oil Filter Set - 22 Pieces - 1/3 (Small) hex-plus-freeshipping Outlet = 3/8" Male Plug:These are the tools I've decided to use at OGHQ, they have a nice quality to them with good ergonomics. They aren't intended to replace everything but there is a great variety of tools offered here. For the price, you cannot beat them vs something that's 2x or 3x the cost like Snap On.