Victor 0381-1648 ST1051FC 48 inch 75 degree head Heavy Duty Straight Cutting Torch features built-in patented flashback arrestors and reverse flow check valves for added safety. Industrial applications include heavy and medium duty. Gas for use is with any fuel gas, 5 PSIG and above. Cutting Tips Series 1 Type: 101, 101-30 degree, 101L, 108, 110, 112, 118, 303MP, GPM, HPM, 318MP, 303MP, GPP,HPP, 318MP, 200, 200L, GPN, HDN, HDNL, MCN, CSN, HPN, HWN, 207, 218, 234, 244, GTB. Cutting capacity is 1/8 inch to 5 inches. The lever position is in the bottom rear of the handle.