Job Description:

• 1) Tends battery of machines that cut spiral grooves into bores of artillery and small arms weapons by either of following methods: Inserts barrel in collet of machine and button in hole of push rod attachment on machine.

• 2) Starts machine to rotate barrel and feed it over button to impress grooves in bore.

• 3) Locks broach or hook cutter in drawing head and barrel in indexing head of broaching machine, using wrenches.

• 4) Moves levers to regulate automatic feed and to cut rifling to specified depth and twist.

• 5) Cleans bore, using cleaning rod and patch, and examines bore for burrs and scratches.

• 6) Measures rifling for conformance to specifications, using dial and depth gauges.

• 7) May be designated according to type of rifling tool used as Barrel Rifler, Broach; Barrel Rifler, Button; Barrel Rifler, Hook.