These consumables can fit SG55, AG-60,WSD-60 Torch, Which work with CUT60, K60, 50DX, 50RX 520D etc. Compatible with brands such as: Rilon, Riland, Jasic, Mitech, Chiry, UNT, Krypton, Longetivity Forcecut 40D, etcPlasma cutting hines.