SUNEX TOOLS 310EPC 3/8-Inch Drive 5/16-Inch Female Pipe Plug Socket

This is worth it. Really lowers the frustration level

Use for adjusting air brakes. Fits perfect. Good finish, use daily and still looks new. Great price for a professional tool.

It works perfect for the 5R55S. Used this for a ‘10 Mustang transmission rebuild.

If you looking to use on slack adjusters on heavy duty trucks, it works awesomeness. Not for all situations. But for my fleet of 9200's, it's a game changer. Kind of like when they came out with flip phones....it changed the world. Don't know what else you'd use it for.

I am a diesel mechanic and needed this tool and snap on wanted $30 for a similar design. Glad I looked on Amazon. Now my coworkers have ordered the same tool. A must have tool for air brakes and it’s not going to hurt your wallet.

Good

The media could not be loaded. Just got this socket and it works great for slack adjusters..Will pair perfectly with a stubby 3/8 drive ratchetThose ratchet style slack adjusters always wear out.

I used this socket to mate with a 5/16-inch square-taper screw extractor (to remove a broken spark plug). We (two people) worked a 15-inch breaker bar and a lot of force on this and it stood up to the test. Yes, we did get the broken spark plug extracted (to took an hour and over a hundred hard pulls). Highly recommended for this use. I actually picked up the 3/8, 1/4, and this 5/16-inch square socket because I wasn't sure which extractor I would eventually use. The socket is covered by masking tape in the photo to keep the extension/socket/extractor assembly together as it was dropped into the recessed spark plug hole, but you get the picture. This socket was essential in this job.