Review on 🔧 Mudder R410A Valve Core Remover Kits: Air Conditioning Refrigerant Angled Compact Ball Valve with SAE 1/4 and 5/16 Port R410 R32 Brass Adapter, Including 20 Valve Cores, 10 Brass Nut, and 270 Sealing Washer by Jay Campbell

The first time I used the valves when refueling on the radiator system. The yellow valve was leaking in multiple places, actually 3. The blocks could not be pushed through the Schrader valve core on 2 blocks. Made them completely unusable for me. Other than that, o-rings, extra valves, valve removal tool are all fine, or at least they appear to be. I made this purchase primarily for the valves as the gauges I bought had hoses with no valves. Now I will just order a set of hoses that come with valves complete with a hose.