Monster's 140 amp professional portable MIG welder, No. MSTMIG6140, comes as a gas and no gas (flux core) capable welder with a six-step output power. This 115V welder welds from 24 gauge to 1/42 MIG and to 5/162 flux-cored wire .0232" to .0352" diameter. The welder is set up with a toggle switch and plug to accept a spool gun. The package includes a 101 TW1 torch, work clamp, adjustable gas regulator, mild steel .030" wire and 5-tips and operator manual.