Tom Thumb - Case Prep Centre Blank Seat Plug #20 suits the

Seat Plug #20 suits the following

3/16” Shank Pilots may also be used on Hornady and Forster trimmers

The trimmer features a click‑adjustable micrometer for precise and consistent trimming

300 Blackout

Federal® brass

Tom Thumb - Case Prep Centre Blank Seat Plug #20 suits theThe Tom Thumb Case Prep Centre. Built for reloaders who want speed, clarity, and absolute control at the bench. Its smart colourcoded stations make brass identification effortless during preparation, eliminating mixups and keeping workflow sharp. A rugged easycarry base lets you move the unit around the bench without losing your setup, while the compact, foldable design packs down neatly when space matters. The openface layout provides full case