You are looking at a brand new
Ratchet Wrenches for port Valve and dust cap: 4-in-1
Model: CT123, same size as REFCO 9881467 or TIF 10082
Four sizes: 9/16" hex for dust cap on access valves and plug oil check on compressor;
1/2" hex for compressor mounting bolts;
1/4" square for valve stem and service valves and old style compressor valves;
3/16" square for valve refrigerant charging tanks.