HENDERSON PRECISION GEN 3 NON-MOTOR TRIMMER *S/O*

HENDERSON PRECISION GEN 3 CASE TRIMMER

The Tri-Trim Gen 3 Case Trimmer utilizes The Taper-Lock cutter head to create clean, consistent and completely trimmed cases in one operation. The cutter head has adjustable carbide blades that will last a lifetime and leave burr-free cuts on the mouth of the case. The Tri-Trim Gen 3 Case Trimmer itself is machined from 6061-t6 aluminum and a combination of 303 and 416 stainless steel. The Tri Trim case trimmer is extremely fast and accurate. It has been engineered and manufactured 100% in America for a lifetime of service to the end user. It requires a user supplied power source for operation. This can be a corded hand drill or a drill press with an angle adapter. For mobile use a cordless hand drill can be employed as well.

Case preparation is a necessary evil in the reloading process. The trim operation for rifle cases is especially time consuming unless you are using a Tri-Trim Gen 3 Case Trimmer. It is designed from the ground up to make trimming cases easy, fast and accurate. The cartridge case it held by a Brown and Sharpe type collet by the rim. These types of collets are used in the machine tool world because of their accuracy and repeatability. There are 4 collets for the various cartridges one would reload for, from .224 to .338 Lapua and everything in between. The cartridge case is placed into the collet base first and held in place while the handle is tightened to secure the case for the trimming operation. It only takes about ten degrees of rotation for the handle to secure the case and this design holds the case in the same position regardless of the rim diameter for consistent trim length. The collet assembly is mated to a carriage machined from solid 6061-t6 bar stock and precision fit to ground and polished stainless rods. The spindle is machined from stainless steel and rides in a set of sealed ball bearings which are press fit into the bearing housing which is also machined from solid 6061-t6 bar stock. All the aluminum parts are anodized.   All the fasteners are black oxide coated and sourced locally.

• Trims most standard calibers
• Extremely consistent and will repeat to within 0.002″ with same brand brass
• Brown & Sharpe-type collet
• Taper-Lock cutter 14deg inside chamfer 30deg outside chamfer
• The power unit and motor mount kit may be ordered separately to convert non-powered Gen 3 trimmers. 

What’s included with the trimmer:

• Collet #1
• Extra Drive belt
• Extra Cutter draw screw
• Adjustment screws for case length
• 5/32 Allen wrench
• 11/16 wrench

Cutter Heads can be purchased (Non-adjusted). Non-Adjusted cutter heads will need to be adjusted by the end user to your brass and dies, see the video below. Once the length is set it will not need to be adjusted again. When changing to another cartridge just loosen the lock nut and remove the lock screw as an assembly. It can be marked for the cartridge it was used for and then used again when needed.

OPERATION:

The Tri-Trim Gen 3 Case Trimmer is designed to work in many configurations. It can be powered by an electric hand drill, cordless drill or motor unit.  Optimum drill speed is around1700rpms but a range of 1400-1800rpms may be used, not exceeding 1900rpms.  It is preferable to screw or clamp it to your work bench. When in proper position for use, the Tri-Trim Gen 3 Case Trimmer will be positioned on a bench with the cutter head facing toward the operator. When facing it, the cutter head will rotate in a counter-clockwise direction. The power source will be turning clockwise. Install your favorite hand drill to the spindle shaft and set the handle down on the bench on the right side of the trimmer as you are facing it. Turn on the drill and lock the trigger down for continuous operation. Insert a clean and sized cartridge case into the collet and rotate the handle clockwise, hand tight to secure the case. Gently push the handle toward the cutter until the cutter head engages the case mouth. At this point you will feel the cutting action. When you no longer see or feel the cutting action, retract the carriage and loosed the handle to remove the case.  It is recommended to measure the cases randomly to make sure all adjustments are secure. Once adjusted, The Tri-Trim Gen 3 Case Trimmer will repeat within +or- .002” with the same brand of brass.

Included Collet #1 – (.379, .473 & .532 Dia)

222 Rem. Mag, 223 Rem, 225 Win, 22-250, 220 Swift, 243 Win, 6mm Dasher, 6×47 Lapua, 6XC, 244 Rem, 6mm B.R. Rem., 257, 25-06, 264 Win. Mag, 260 Rem, 6.5×47 Lapua, 6.5 Creed, 6mm Creed, 6mm SLR, 6.5×57 Mauser, 6.5mm Win, 6.5 Jap Mauser, 6.5×55 Swede, 6.5×55 SKAN, 270 Win, 270 Savage, 270 Gibbs, 270 Wby, 270 Ackley, 7×57 Mauser, 7mm Wby, 7mm-08, 280 Rem, 284 Win, 7mm Rem. Mag, 7mm B.R. Rem, 30-06, 308 Win, 300 win Mag, 300 Sav, 303 British