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PISTOL CHAMBERING REAMERS Reviews & Ratings

Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.

SPECS: PISTOL REAMERS - 6, right-hand cutting, straight flutes. Solid pilot. Integral throat. Available in two different pilot diameters: Barrel for Single Shot or Semi-Auto pistol and rifle barrels; Cylinder for Revolver cylinders. 7/16" dia. shank with 3/8 " square drive, depending on caliber, ј" round shank on .22 RF. Stocked in Finisher style only. ORDERING: Advise: 1) Stock #. 2) Cartridge Caliber and Name.

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3 Stars

1 Stars

Reviews Summary

Overall, customers are very pleased with the PISTOL CHAMBERING REAMERS, praising their sharpness and effectiveness in various applications. A few users mentioned concerns about pilot compatibility and the absence of usage instructions, but these points do not overshadow the general satisfaction with the product's performance.

What Reviewers Are Saying

Product Quality

73%

Reviewers consistently commend the sharpness and build quality of the reamers, citing their ability to cut cleanly and perform well in both hand and lathe applications. Many find the tool to meet their expectations for precision.

Usability

64%

Customers appreciate the ease of use of these reamers, noting they can handle them manually or apply them in lathe work without much effort. Several reviewers shared successful experiences after using the reamer, demonstrating its effectiveness.

Lack of Instructions

27%

A notable number of reviewers express frustration over the lack of instructions or guidance on how to properly use the reamer, indicating a need for clearer information to accompany the product.

Pilot Fit Issues

27%

Some users encountered problems with the pilot fitting specific barrels, leading to concerns about compatibility. While not universal, this issue was significant enough for a few reviewers to mention as a point of disappointment.

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Reamer

i hope it works great. havent used it yet , really looks great Thank you !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Would you recommend this? Yes, I would recommend to a friend

by SIDNEY B. on January 07, 2026

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9MM Clymer Chamber Reamer

Cuts clean, no chatter. Used in Lathe. Would buy again.

Would you recommend this? Yes, I would recommend to a friend

by JIM L. on November 04, 2024

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Was this review helpful? 1

Smooth cutting reamer

Used this reamer to cut the chamber in a .44-40 WCF rifle barrel liner. I turned by hand, the pilot fit the bore perfectly, and the reamer cut smoothly without chatter. Factory and reloaded cartridges of various brands all chamber fine.

by MICHAEL P. on August 18, 2024

Verified Purchase

Was this review helpful? 1

Nice reamer

I used the .357 mag cylinder finishing reamer to "clean up" the factory chambers on my revolver. The reamer is has super fine sharp edges. It was easily turned by hand with little effort. It is a very fine well made tool.

Worked beautifly.

I needed to replace the cylinder on one of my now-out-of-production .357 Mags, and the only good replacement I could find was chambered in .38 Special. This tool did a superb, precise job of deepening the chambers, and the job was done in just a few minutes.

Works a treat!

I've used the product to ream three chambers, and it does exactly what it's supposed to. Sharp enough to cut properly even in a hand-tool, strong enough to use in the lathe. What more could you ask for?

Instructions not included

No instructions on how to use. No indication of how deep into the chamber to go. Good and sharp though.

Great for reworking tight chambers.

I used this to correct a 40 S&W barrel that had an undersized chamber and rough throat. The finish produced is outstanding. Can be used by hand with a tap wrench and good cutting oil like Do-Drill. Just cut a few turns, back out while still spinning, wipe or blow off chips, re-oil and go again. Use extreme care when you are getting close to shoulder area so you just clean up the shoulder. If you have depth mikes, check the headspace depth so as not to exceed SAAMI specs which can be printed off the SAAMI website for free.

Very nice reamer

Not much you can say about a reamer. It's very clean,very sharp and over all nice grinding.

Easy to use and worked quickly.

This tool was rather expensive for a single repair, but the only option for the gun I was working on. It was easy to use and worked relatively quickly. I wish I could comment on its durability, but as mentioned, I have only used it once.