Hornady High Speed 3-in-1 Case Trimmer Clamp Collet – Small Rifle

Description

This is the Small & Standard Rifle clamp collet (Hornady calls it Collet A) made for the Hornady High Speed 3-in-1 Power Case Trimmer. It's the piece that twist-locks onto the trimmer and grips the case head while the motor spins the brass against the cutter. This particular collet is sized for rim diameters of 0.375 and 0.470 inches, which covers a huge swath of popular rifle brass along with the 6mm ARC and 22 ARC family.

Where the Small Rifle Trimmer Collet Fits In

The High Speed 3-in-1 trimmer ships with two collets from the factory, each handling two rim sizes, so between them you're set for most cartridges from small rifle up to magnum. If you've misplaced one, worn it out, or just want a backup on the bench so you're not swapping back and forth mid-session, a spare collet earns its keep. Keeping a dedicated one set up means less fiddling when you jump between case families.

What the 3-in-1 Case Trimmer Collet Actually Does

The collet is the heart of how this trimmer holds brass. Rather than a shell holder setup, the case base seats flat against the back of the collet and the twist-lock clamps it in place, keeping everything steady while the motor runs north of 2000 RPM. A snug, square hold is what lets the trimmer trim, chamfer, and deburr in that single pass folks like it for. Match the collet to your brass rim and you get consistent, repeatable results run after run.

If you already own the High Speed 3-in-1 and shoot a lot of standard rifle rounds, this is the collet you'll reach for most. It's a simple, well-made part that does one job and does it right.