Can I attach the Hornady Large Primer Pocket Reamer head to a motorized case prep center?

Yes, the cutter head features an industry-standard 8-32 TPI male thread interface. This allows you to unscrew the included knurled aluminum handle and mount the reamer directly onto multi-station power units like the Hornady Lock-N-Load Case Prep Trio or a compatible drill adapter for high-volume batch processing.

Will this tool work on small primer pockets like those found on 5.56mm brass?

No, model 041202 is strictly restricted to large primer pockets with a nominal diameter of approximately 5.33 mm or 0.210 inches. It is designed for large rifle and large pistol cases, such as surplus 7.62x51mm NATO brass, and will not fit small primer pockets which require the separate small reamer variant.

Does this manual reamer require any electrical compliance or SAA/RCM certifications for use in Australia?

No electrical compliance or SAA/RCM certifications are required because the Hornady 041202 is a purely mechanical, non-electric hand tool. It operates entirely by manual hand power in your workshop or can be attached to non-mains power accessories, meaning Australian 240V mains standards and plug configurations do not apply.

Large Primer Pocket Reamer - Hornady 041202

The Hornady Primer Pocket Reamer - Large (MPN: 041202) is a dedicated handloading tool designed to cut away circular or staked military crimps from primer pockets on fired brass cases. Operating via clean metal shearing rather than swaging, it removes excess brass at the pocket mouth to prevent crushed primers and high seating during reloading. The package includes a hardened steel reamer head paired with a knurled, machined aluminum Universal Accessory Handle for non-electric, bench-side case preparation.

Key Features

Military Crimp Removal: Specifically cuts away staked and circular retention crimps, allowing standard commercial large primers to seat flush and without deformation.
Modular 8-32 TPI Thread: Features an industry-standard 8-32 TPI male thread interface on the cutter head, allowing quick removal from the knurled hand handle for mounting directly into powered case preparation centers or drill adapters.
Durable Construction: Uses a hardened cutting steel reamer head (part #390751) combined with a lightweight, fully knurled aluminum handle for positive grip during manual operation.
Purely Mechanical Operation: Requires no electrical supply, batteries, or specialized mains adapters to operate in the workshop.

Product Specifications

Manufacturer Part Number (MPN): 041202
Pocket Compatibility: Large primer pockets only (nominal ~0.210 in / 5.33 mm diameter, Large Rifle and Large Pistol)
Thread Interface: 8-32 TPI
Cutter Material: Hardened tool steel
Handle Material: Machined aluminum, fully knurled
Packaged Weight: Approximately 45–60 grams
Country of Origin: Made in the USA

Who is the Hornady Primer Pocket Reamer - Large for?

Reloaders processing surplus 7.62x51mm NATO military brass — cuts out hardened crimps to allow standard commercial priming on large primer pockets measuring nominal ~0.210 in (5.33 mm) diameter, keeping handloading safe and uniform with this dedicated large primer pocket reamer.
Service rifle competitors preparing batch brass manually — fits standard reloading setups via an 8-32 TPI thread interface, enabling users to ream small runs with the included knurled handle or swap the large primer pocket reamer head directly into prep tools.

Less suitable for: Small primer pockets under 5.33 mm (such as 5.56x45mm NATO or .223 Remington cases), which require a dedicated small primer pocket reamer; additionally, manual use is less suitable for high-volume batch processing exceeding 200 rounds, which requires a motorized power case prep center or drill adapter to prevent hand fatigue.

SKU	HN42420LP
Model #	041202
Brand	Hornady
Shipping Weight	1.0000kg

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Hornady 041202 Primer Pocket Reamer Large 8-32 Tpi Handle

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