Columbia Part: CTA57 Tape Advance Carriage Assembly for Columbia AUTOMATIC TAPER Included parts: - CT57 (qty 1) — Tape Advance Carriage - CT58 (qty 1) — Guide Rod Bushing - CT59 (qty 1) — Magnet - CT62 (qty 1) — Needle Holding Shaft - CT63 (qty 1) — Needle - CT64 (qty 1) — Needle Return Shaft - CT65 (qty 1) — Needle Return Spring - FA210 (qty 1) — 4/40 x 3/16" Binder Slot - FA212 (qty 2) — 4/40 x 3/16” Truss Slot - FA220 (qty 1) — 4-40 x ¾” Hex Bolt - FA238 (qty 1) — 6-32 x 3/16” Fillister Slot