Clymer Rimmed & Belted Rifle Chambering Reamer – 32-40 Winchester Finisher (184050332)
The RIMMED & BELTED RIFLE CHAMBERING REAMERS 184050332 designation refers to the Clymer 32-40 Winchester Finisher Chamber Reamer, a rimmed rifle chambering tool from Clymer’s well-known line of professional gunsmithing reamers. It’s a cartridge-specific 32-40 Winchester (.32-40 WCF) finisher reamer, built for cutting or finishing rifle chambers to SAAMI-based dimensions when used with proper techniques and gauges. Brownells UK+2Brownells Deutschland+2
Product Identity & Line Placement
This places 184050332 in the same family as other Clymer rimmed and belted rifle chambering reamers for cartridges like 25-20 Winchester, 30-30 Winchester, 30-40 Krag, 45-70 Government, 7.62x54R, etc. Brownells UK+2Brownells+2
Construction & Materials – M-7 High-Speed Steel
Clymer’s rimmed and belted rifle reamers are described in Brownells’ and Clymer’s own material as being made from M-7 high-speed steel, chosen for its hardness, wear resistance, and dimensional stability in precision cutting applications. Clymer Tool+3Brownells UK+3Brownells UK+3
For SKU 184050332, that means:
This makes the Rimmed & Belted Rifle Chambering Reamers 184050332 a purpose-built, professional-grade tool rather than a general hardware reamer.
Geometry & Cutting Features
Across the Clymer Rimmed & Belted Rifle Chambering Reamers line, geometry is standardized for predictable performance: Brownells UK+3Brownells UK+3Brownells UK+3
Flutes: 6 flutes, right-hand cutting, straight
Pilot: Solid pilot to help keep the tool aligned in the bore and minimize chatter
Throat: Integral throat on finishing reamers – the chamber and throat are cut in one operation
Shank:
Small-Caliber Exception: .22 rimfire tools in this family use a smaller 1/4" round shank; the 32-40 Winchester finisher uses the full 7/16" pattern. Brownells UK+2Brownells UK+2
The 184050332 / F3240WIN variant applies this geometry specifically to the 32-40 Winchester rimmed rifle chamber. Brownells UK+2Brownells Deutschland+2
Rougher vs. Finisher – Where 184050332 Fits
Clymer’s chambering reamer line is offered in Rougher and Finisher versions: Brownells UK+2Brownells UK+2
Roughing Reamers:
Cut about .010" under final chamber diameter
Do not cut the throat
Intended to take most of the metal when many chambers are being cut, to preserve the finisher
Finishing Reamers:
Cut the chamber to final dimension, including the throat profile
For lower-volume work, catalogs explicitly state that “if only a few chambers will be cut, a Finish Reamer is all you need.” Brownells Deutschland+2Brownells UK+2
The Rimmed & Belted Rifle Chambering Reamers 184050332 is a Rimmed Finisher Style Reamer that fits 32-40 Winchester, so it is the final-size tool in that two-step system. Brownells Deutschland+1
Cartridge Compatibility – 32-40 Winchester (.32-40 WCF)
The 184050332 reamer is specifically labeled for the 32-40 Winchester cartridge: Brownells UK+2Brownells Deutschland+2
This is not a generic multi-caliber tool: it is a cartridge-specific chamber reamer designed to produce 32-40 Winchester chambers when used correctly in appropriate barrel blanks and actions.
Intended Use & User (Neutral)
Online catalogs such as Brownells and Brownells EU/UK list RIMMED & BELTED RIFLE CHAMBERING REAMERS under “Bore & Barrel Tools → Reamers & Cutters”, clearly categorized as gunsmithing tools & gunsmith supplies. Brownells Schweiz+3Brownells+3Brownells+3
Neutral use guidance for the Clymer 32-40 Winchester Finisher Chamber Reamer 184050332:
Because chamber reaming alters the internal dimensions of a firearm barrel, work with this reamer must follow accepted gunsmithing practices, respect SAAMI dimensions, and comply with all applicable laws and safety standards.
Dimensional / Catalog Details
From Clymer/Brownells documentation and regional product pages: Brownells Deutschland+2friscoguns.com+2
Name: CLYMER 32-40 WINCHESTER FINISHER CHAMBER REAMER
Product No.: 184050332
Mfr. No.: F3240WIN
Cartridge: 32-40 Winchester
Style: Rimmed Rifle (Finisher)
Delivery Weight: ~0.023 kg (approx. 0.05 lb listed by some retailers) Brownells Deutschland+1
Standard: Made to SAAMI specifications for 32-40 Winchester chambers. Brownells Deutschland+2Brownells UK+2
SEO-Friendly Feature Summary for Product Pages
If you’re building out a product page for RIMMED & BELTED RIFLE CHAMBERING REAMERS 184050332, these neutral feature bullets cover what most customers will want to see:
You can then add your own store-specific information—price, availability, shipping options, and any “for professional use only” or legal disclaimers your business requires.
The End
