AR-15/M16 GAS BLOCK TAPER PIN REAMER Reviews & Ratings

AR-15/M16 GAS BLOCK TAPER PIN REAMER

The Brownells Taper Pin Reamer is made of high-speed steel and is precisely tapered to match the shape of the standard A2 front sight gas block. This reamer cleans up existing holes or tapers newly drilled holes to ensure a positive, and secure fit for the sight tower.

SPECIFICATIONS:

Material: Steel
Handle: Plastic, 2-3/4" Length
Reamer Dimensions:
- Tapers from 0.1137" O.D. to 0.1462" O.D. near the shank.

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Reviews Summary

The AR-15/M16 gas block taper pin reamer generally performs well for its intended use, particularly after removing the ineffective plastic handle. While many appreciate its cutting efficiency once adjusted, the handle design and material receive significant criticism. Reviewers suggest alternative methods for better control, emphasizing the importance of patience and oil during use.

What Reviewers Are Saying

Handle Quality

80%

A majority of reviewers express dissatisfaction with the plastic handle, describing it as weak and ineffective. Many recommend removing it for improved handling and control, indicating that the reamer functions better when chucked into a proper tap handle or drill. This theme is mentioned by about 80% of reviewers.

Reamer Performance

70%

Despite concerns about the handle, the reamer itself receives positive feedback for its effectiveness in reaming taper pin holes once used properly. Users report satisfactory results when following best practices, like using cutting oil and going slow. Approximately 70% of reviewers acknowledged its capability.

User Instructions

55%

Many customers note the lack of proper instructions included with the tool. Confusion about how to use it effectively leads to frustration, which implies that clearer guidance could enhance the user experience. This was mentioned in about 55% of the reviews.

Value for Money

45%

Several users consider the cost reasonable for the product, particularly when comparing it to similar options. However, the consensus indicates that purchasing a reamer without a handle may offer better value. This sentiment is echoed by about 45% of reviewers.

Precautions and Technique

60%

Reviewers emphasize the need for careful technique when using the reamer, such as applying cutting oil and taking time to avoid overheating. Indications that familiarity with the tool can mitigate issues show that proper usage is critical for success. This was mentioned by around 60% of reviewers.

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Works for FSB taper pins

The force needed to ream the pin holes destroyed the plastic handle in seconds. You are left with a standard 2/0 reamer with square drive top. Using a square drive tap handle, the reamer worked perfectly to install two standard FSB taper pins. I'm not sure how many pins this reamer is good for, but it worked well for my limited use.

Handle is useless.

This is a fair price for an Asian imported #2/0 High Speed Steel, 4 flute twist tapered pin reamer. Any SMALL tap wrench handle will fit it, but the long screw handle twist handles work best for tapering straight holes. You don't want a faster twist rate, trust me! If you want made in USA, it's out there, for $45-$55, with no handle and no shipping. Made in Germany or Switzerland? $60-$90. You can chuck this up in a drill motor too, but plan on breaking one or two before you figure out exactly how that procedure works. If you already know, go for it. You probably also know you run a risk of breaking it any time you do use this technique, but it can be done. USE CUTTING OIL! It really helps a lot! THE HANDLE WILL PULL OFF or it can be chiseled off. Then use a small tap handle, as this does have a square pin/peg on the end, just like any tap does.

Works very well

The handle is small (about ~5/8" dia.) and not useable, so I took it off. Very easy to do, put the cutting part in a vise and a vise-grip on the plastic, turn a couple times and it comes right off.>>> The cutting part of the tool is reverse "threaded", so keep that in mind when using a drill.>>> USE CUTTING OIL! And take your time, don't build up excess heat. I didn't use a front sight fixture (used the gas tube, fingers, and constant Mk. I eyeball checking to maintain alignment) so it took about 40 minutes to have the first pin installed, which held the alignment for the 20 minutes to install the second pin.>>> Front sight is dead-on straight, no canting or looseness. Reamer is still good for more reaming, just as sharp as when I first got it. Yes, I'd buy it again when this one wears out.