Case PreparationAct ColemanSold by Brownells

Act Coleman

Trim-It Ii Case Trimmer - Trim-It Ii Micrometer Trimmer Body & Cutter

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Mounts Any

Standard drill or drill press

Adjustable 3-way

Cutter trims, chamfers, and de-burrs

3-sided Carbide

Blade is designed for rifle

Built-in Micrometer

Accurate cut-length control

Quick Adjustability

Supports efficient trimming setup

$155.99
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SKU: 100017700

Overview

Designed for reloaders who want a more controlled way to prepare brass, this trimmer mounts to a standard drill or drill press to streamline case trimming tasks. Its adjustable 3-way cutter is built to trim, chamfer, and de-burr rifle or pistol brass, while the built-in micrometer provides precise cut-length adjustment. Because it is not caliber specific, it offers broad use across different brass types, with interchangeable dies available separately.

Why Hunters Choose the Act Coleman

Mounts Any

Standard drill or drill press

Adjustable 3-way

Cutter trims, chamfers, and de-burrs

Built-in Micrometer

Accurate cut-length control

Quick Adjustability

Supports efficient case trimming workflow

Not Caliber

Interchangeable dies available separately

Key Features

  • Mounts to any standard drill or drill press for case trimming use.
  • Adjustable 3-way cutter trims, chamfers, and de-burrs brass.
  • 3-sided carbide blade is designed for rifle and pistol brass.
  • Built-in micrometer provides accurate cut-length control.
  • Quick adjustability supports efficient trimming setup.
  • Not caliber specific; interchangeable dies are sold separately.

Best Used For

  • Reloaders using a standard drill or drill press for faster brass trimming
  • Hunters maintaining rifle and pistol brass across multiple calibers
  • Users wanting trim, chamfer, and de-burr steps in one tool
  • Reloading bench setups that benefit from micrometer-based cut-length adjustment
  • Non-caliber-specific users planning to add interchangeable dies separately

Specifications

AdjustabilityQuick adjustability
Blade Type3-sided carbide blade
Caliber SpecificNo
Cut Length ControlSupremely accurate
Cutter TypeAdjustable 3-way cutter
FunctionsTrim, chamfer, and de-burr
Interchangeable DiesAvailable, sold separately
MicrometerBuilt-in
Mounting CompatibilityAny standard drill or drill press

Pros

  • Mounts to any standard drill or drill press for convenient setup
  • Adjustable 3-way cutter trims, chamfers, and de-burrs brass
  • Built-in micrometer provides accurate cut-length control
  • Quick adjustability supports efficient case trimming workflow
  • Not caliber specific, with interchangeable dies available separately

Considerations & Trade-offs

  • Requires a standard drill or drill press, so it is not a standalone hand trimmer.
  • It is not caliber specific, so using it for different rifle or pistol brass may require interchangeable dies sold separately.
  • The 3-way cutter is designed to trim, chamfer, and de-burr, but setup and adjustment are part of the process rather than a simple fixed-length trim.
  • Built-in micrometer control supports precise length adjustment, but that also means users need to dial in settings carefully for consistent results.

Suggested Comparisons

  • Case trimmers
  • Reloading tools
  • Brass chamfer and deburr tools
  • Micrometer-adjustable trimming systems

Suggested Accessories

  • Drill press accessory
  • Brass case holder
  • Case lubricant
  • Caliper

Frequently Asked Questions

What does the Trim-It II mount to, and what does that mean for setup?

The TRIM-IT II mounts to any standard drill or drill press. The source does not provide additional setup details beyond that.

Is the Trim-It II caliber specific?

No. The product is described as not caliber specific. Interchangeable dies are available, but they are sold separately.

What operations can the cutter perform on brass?

The adjustable 3-way cutter is described as able to trim, chamfer, and de-burr virtually any caliber of rifle or pistol brass.

How is cut length adjusted on this trimmer?

It includes a built-in micrometer for cut-length control and quick adjustability. No further measurement range or calibration details are provided.

What comes with the product versus what is sold separately?

The source states that interchangeable dies are available but sold separately. It does not list any other included accessories or components.