RCBS - Trim Pro Shell Holder #3 123 the quick change system is

the quick change system is what you need

The Outside Neck Turner produces neck walls of uniform thickness and exact outside neck diameter to within a tolerance of

proven by the countless long range records set using it

The base part is specifically sewn in place with a slight inwards curve

3-row Powerstroke Press Adapter (for Large Calibres) - works with EXMH

RCBS - Trim Pro Shell Holder #3 123 the quick change system isRCBS Trim Pro Case Trimmers feature uniquely shaped shell holders to firmly hold rifle and pistol cases in perfect alignment with the cutter. This system allows for accurate and repeatable case trimming lengths and leaves the case mouths square to the body. Trim Pro Shell Holders are numbered the same as standard shell holders to simplify identification and use. They're available individually, or in pre packs, for most popular rifle and pistol