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 looks better than anything else I've ever used outside of maybe Swissvax Concorso

This system is always monitoring ground continuity for your safety

These have the Euro High Flow fitting attached to them

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.