Every now and then you come upon a tool or accessory that is truly a game changer in the way it solves a problem. The Lock 'N Lube grease coupler comes to mind.
I have a new one to add... the Milton Safety Air Coupler. These are not new as they've been around for a quite a while but I was fortunate enough to discover it recently.
If you are like me you probably have a quick coupler like this on your air compressor hose:
It works okay but suffers from a couple issues - for me anyway. One is that it is almost impossible to attach or detach a tool with one hand while the hose is under full pressure. I usually have to jam the hose against my leg while pulling down on the collar with one hand while I attach the tool with my other hand. This eventually kinks your air hose and can lead to premature failure. It can still be difficult to overcome the pressure in the hose and get the fitting seated. When detaching a tool I usually repeat the process but in this case the air pressure helps to push the tool away. This can be good and bad as I'm sure we've all shot the air chuck across the room into the tool box.
Enter the Safety Coupler.
The way this works is you press the green button once and the inserted coupler on the tool disengages about 1/8" and releases the air pressure. You press the button a second time and the inserted coupler gently releases into your hand. When attaching a tool you simply press it into the coupler. No need to push the button or pull back a spring loaded collar. Even with the supply line fully pressurized it requires no effort at all to insert a fitting. Attaching or detaching a tool is easily accomplished with one hand.
The Safety Couplers come in a variety of air coupler styles with both male and female threads. They are available from various manufacturers. This one just happens to be a Milton in the "T style" (aka Automotive style) that I use. I've seen these Milton couplers available for less than $15 from a variety of sources.
This may be old news for some but if you find yourself sometimes struggling with the spring loaded collar on a conventional style air coupler, give one of these a try.