B13 Thread Rolling Attachment Parts PN 200U553, Complete Attachment PN 8199390, Head Body PN 8177610A, #1 Solid Arm (incl. bearing) PN 8177620A, #2 Solid Arm (incl. bearing) PN 8199880A, #1 Geared Arm (incl. spacer & bearing) PN 8199890A, #2 Geared Arm (incl. spacer & bearing) PN 8163440, Arm Clamping Nut PN 81XXXX0, Roll Pin – carbide / bronze PN 8165930, Cover Plate PN 8164520, Matching Adj. Screw PN 8172070, Compensator Spring PN 8164450, Compensator Block PN 8164430, Drive Gear PN 8164440, Intermediate Gear PN 8164400, Gear Stud PN 8172020, Arm Pivot Shaft PN 8164420, Large Idler Gear PN 8164560, Idler Gear Bearing PN 8164540, #1 Chip Guard PN 8164530, #2 Chip Guard PN 8164440, Compensator Gear PN 8XXXXX0, Thrust Bearing (anti-friction) / (carbide)–optional PN 9094453, Locking Screw PN 8025501, Spanner Wrench PN item-1635, Hex Wrenches (each) PN 8416050, Arm Adjusting Screw PN 8416051, Arm Locking Screw PN 8179190, Bronze Thrust Bushing PN 8199871, #1 Roll Gap Spacer — 1 notch PN 8199872, #2 Roll Gap Spacer — 2 notches PN 001U59, Micrometer Setting Gage PN 8200830, Max. Modified Solid Arm #1 PN 8200840, Max. Modified Solid Arm #2 PN item-1644, Thread Rolling Attach. Handbook PN item-1645, Adapters