A professional who assembles military gas masks, using kick press and handtools. Responsibilities include:

• Punches holes in facepiece, using kick press.
• Attaches valves to facepiece and seals joints, using wire strands, acetone, cement, and tape.
• Glues hoses to facepiece and canister units.
• Clinches metal clamps on strips of tape to form head harness and attaches harness to mask.
• Inserts lenses in eyepieces and crimps rims to seal lenses.
• May stitch reinforcement patches onto masks and seal stitching with cement.