Deburing the tube before starting

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DRDJR

Member
Joined
Jul 23, 2025
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28
Location
Cantonment Fl.
I am finding out that deburing the tube before you start and after you glue it in the blank are 2 very important steps.
of all the deburing tools I have. I find the one from RCBS that is designed for reloading works the best. it is designed to debur the inside and outside. I had been using a 60° chamfer tool for the inside but was having problems when trying to insert in the blank. and found burs on the outside of the tub end. and let me just say if the tube does not go because of a bur and you have lready smeared glue in the blank and on the tube you have a mess on your hands.
 

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I can honestly say, I've never deburred any of the tubes I've received with a kit. Never had the need to.
I turn between centers, sans bushings, and get a 60º chamfer on the inside of each end just from that.
 
Never deburred, but sounds like a great quick little idea since anything to make insertion easier and more efficient is very worth while. Thanks for brining this up.......Now, where did I last put my little deburring tool???
 
I always deburr before I insert any components. I use that same tool. Have been ever since I started making pens. It has held up well. I say it is a good idea to do this. It helps start the parts better when pressing.
 
Probably not as good as the ones referrenced above, but when I ocassionally debur a tube, I have used this. I think I have the same one since 2014. The one that I bought was light grey with the orange ends.HD Debur Tool
 
I also have a tool for chamfering and deburring brass casings after trimming them to length prior to reloading them, and I also give my blanks a quick pass before mounting on the mandrel. I get burrs when I flush up the blank to the tube with my disc sander, the deburring tool makes short work of them and I find it makes assembly easier at the end too.
 
If i've ever needed to I just use 120grit wrapped around a small screw driver shaft. Seat of the pants technique but it works

mind you a new tool 🤔, must be worth a look
 
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