This disclosure describes embodiments of a surgical apparatus including a handpiece configured to modify a feature of a jet of argon gas. An alternative embodiment of the surgical apparatus includes a handpiece configured to modify a feature of a jet of argon gas, wherein the handpiece includes a nozzle member with one or more bores configured to direct argon gas as the jet. An additional embodiment of the surgical apparatus includes a handpiece configured to modify a feature of a jet of argon gas； wherein the handpiece includes a nozzle member with one or more bores configured to direct argon gas as the jet； and a collar around the nozzle member, wherein sliding the collar along the nozzle member changes the feature of a the jet of argon gas.
