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1/2" 79\ Crown Cutter
1/2" 79\ Crown Cutter
3/4" 79 Crown Cutter
3/4" 79 Crown Cutter
1/2" 79\ Crown Cutter
1/2" 79\ Crown Cutter
3/4" 79 Crown Cutter
3/4" 79 Crown Cutter
None
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BROWNELLS - 79 DEGREE MUZZLE CROWNING CUTTER

33 Reviews
Diameter (in)
Brownells #
080586500, 080586750
MFR #
800 00500 0020, 3/4 79 DEGREE CROWNING CUTTER
UPC
050806016521, 050806016569
$55.99 - $86.99
Coupon Code
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What is the BROWNELLS - 79 DEGREE MUZZLE CROWNING CUTTER?

79 DEGREE MUZZLE CROWNING CUTTER

Hardened steel, muzzle crowning tool cuts a slight (11° less than square) target chamfer on barrels. Gives good rifling protection without going too deep. 90° - 11° = 79°, hence the name. Eight, precision-machined flutes give smooth, chatter-free cuts to help eliminate extra lapping or stoning. ¼"-20 thread fits Brownells muzzle chamfering handles. Use with our muzzle pilots to ensure precise alignment with your bore. Available in ½" and ¾" diameters to accommodate most rifle/handgun barrel diameters.



SPECIFICATIONS:

  • Material: Tool Steel
  • Length: 2-3/8"
  • Diameter: 1/2" or 3/4"
  • Threads: 1/4"-20 tpi
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79 DEGREE MUZZLE CROWNING CUTTER REVIEWS

4.8
33 Reviews
5 Stars
88%
4 Stars
9%
3 Stars
0%
2 Stars
3%
1 Stars
0%
Reviews Summary
The 79 Degree Muzzle Crowning Cutter receives high praise for its quality and effectiveness in improving accuracy and cutting clean crowns. Users appreciate its ease of use and the impressive results it delivers, though some mention minor issues with the drill chuck adapter. Overall, it's considered a must-have tool for DIY gunsmithing projects.
What Reviewers Are Saying
Product Quality
80%
Reviewers consistently highlight the high quality and durability of the 79 Degree Muzzle Crowning Cutter. Many users report that it cuts smoothly and effectively, allowing for precise and clean crown finishes. The tool's superior performance compared to alternatives, like grinding balls, further emphasizes its reputation for quality.
Ease of Use
75%
Many users found the cutter easy to operate, often noting how straightforward the process was, even for first-time users. With proper techniques like using cutting oil and maintaining steady pressure, customers were able to achieve excellent results without prior gunsmithing experience.
Accuracy Improvement
70%
Numerous reviews mention significant improvements in shooting accuracy following the use of the cutter. After recrowning, users have reported tighter groupings, some achieving sub-MOA results, which indicates the cutter's effectiveness in restoring or enhancing a rifle's performance.
Minor Technical Issues
25%
While the tool is greatly appreciated, a few users experienced minor difficulties with the drill chuck adapter threads not aligning properly or the pilot fitting slightly loose. However, these issues were generally resolved with minimal effort and did not detract significantly from the overall positive experience.
Recommendations and DIY Projects
65%
Users express strong recommendations for the cutter, often sharing their successful experiences with various rifles. Many engaged in DIY gunsmithing projects, feeling empowered to perform their own recrowning confidently, which saves time and money compared to professional services.
Customer Photos & Videos
5
Just works
Tool performs properly
by Cary Hennigh on March 09, 2026
Verified Purchase
Was this review helpful? 0
5
Exceeded my expectations
1/2" version was out of stock for 7 weeks since I placed a back order. I went with smaller diameter in case my recessed crown going to be in the way with a larger cutter, I didn't want to cut unnessary metal and it was the right choice. I have a lathe but with Handi Rifle barrels the metal mounting stub is in the way so hesitantly I placed an order, thinking its going to leave chatter marks. I made my own pilot and used pin gauges to measure my barrel muzzle, it was more snug fit at .3015" while stock pilot is .300". The other end of the pilot is .190". For handle I used a scrap piece of aluminum I had laying around, drilled and tapped for 1/4-20. The result impressed me! No chatter marks and very smooth cut!
Would you recommend this? Yes, I would recommend to a friend
by Dmitry Prokopenko on January 28, 2026
Verified Purchase
Was this review helpful? 1
5
simple and accurate
this crown tool cut a perfect 11* crown with ease. Just install the handle and the appropriate bore pilot then start turning. It's as easy as that.
Would you recommend this? Yes, I would recommend to a friend
by MIKE DOUGLAS on June 04, 2025
Verified Purchase
Was this review helpful? 2
5
11 degree cutter
Worked as described, very sharp , easy crowning. I used it to crown a 9mm pistol barrel with the recommended pilot. DlC coating must be sanded off or any other hard finish on the muzzle. Thank you customer service for your help.
Would you recommend this? Yes, I would recommend to a friend
by Amin Khan on March 14, 2025
Verified Purchase
Was this review helpful? 1
5
79* Crowning cutter
Last outing my Savage 6.5 CM rifle would not group. Was getting 2-3" pattern at 100yrds. Inspected rifle and found a damaged crown. I knew Brownell's would have a solution. Ordered the 1/2" 79* Crowning Cutter, a 6.5mm brass pilot, and the drill adapter. Everything arrived USPS within just a few days. I chucked up the cutter and pilot they all fit together like they should and ran straight. I cut at very slow speed with cutting oil and used old toothbrush to remove metal flakes. Sharing a picture taken with my borescope while it's not the best picture you can still see the crown is very clean, crisp, straight, and this should bring the accuracy back. Very happy to recommend this product. I have other rifles and will likely get a few more pilots so they can also get fresh cut crowns too.
Would you recommend this? Yes, I would recommend to a friend
by Joel on January 05, 2025
Verified Purchase
Was this review helpful? 6
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Customer Questions
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