A professional who tends machine that trims edges of outsole and welt to conform to outline of lasted shoe upper. Responsibilities include:

• Adjusts width gauge, following size specifications.
• Starts machine and depresses pedal that withdraws knife from cutting position.
• Positions shank or heel seat against machine guide.
• Releases pedal that forces reciprocating horizontal knife against outsole and welt.
• Presses and turns outsole and welt against machine guide and cutting edge of knife.
• Presses control that regulates width of cut at toe, ball, and shank of shoe while edge is being trimmed.
• May cut channel (groove) in bottom of outsole near edge.