Review on SURIEEN Self-Sealing Can Tap Depressor (R1234yf) - F-1/4 SAE 1/2 Acme LH Thread Valve Tool & Bottle Opener with F-1/4 SAE to M-1/2 Acme Connector Adapter - Ideal for R134a, R12, and R22 Charging Hose by Fernando Hudson

Material quality looks and feels good. But the thread on the valve is not cut correctly 😐 Do not unscrew the refrigerant bottle. You didn't cut the starting thread, and when you got it first, it was twisted crooked. I tried to repeat it, but I couldn't penetrate deep enough into the body. Revan gave me credit. Ordered another one for 3.00, still worked great, looks and feels the same.