Chamfer Tool

[D Coots]

Use a 20 gauge hull to power the chamfering tool using your cordless drill.

 

[mike a]

Use a 20 gauge hull to power the chamfering tool using your cordless drill.View attachment 1149677

Caveman engineering. Nice

 

[piie]

Am I doing something wrong? I usually give it 3 to 5 twists, with moderate pressure at best, and most of my attention is on the INSIDE of the case neck to make sure there are no sharp edges that can catch the bullet jacket when seating. Putting that thing on a drill makes the hair stand up on my neck - how much brass are you taking off?

 

[Ralph Littlefield]

Am I doing something wrong? I usually give it 3 to 5 twists, with moderate pressure at best, and most of my attention is on the INSIDE of the case neck to make sure there are no sharp edges that can catch the bullet jacket when seating. Putting that thing on a drill makes the hair stand up on my neck - how much brass are you taking off?

It would depend on how much pressure you used and how long you held it against the trimmer. If you are not heavy handed, this is a good way to process a lot of brass quickly. Set the drill on a slow speed, hold it with a vice and gently feed the brass into it.

 

[Ralph Littlefield]

I love the DIY approach! I am currently thinking about trying to make a runout measuring device using a dial indicator that I have on hand and a length of small angle stock to support the case. The idea may not go any where, but it will provide some entertainment in my shop.

 

[D Coots]

Ralph

You think things through well. I made this tool in 1989 when I was working up 1,500 rounds of PD brass. No piie, you're not doing anything wrong. My wrists didn't like the thought of 15,000 twists. I wouldn't do this operation by hand anymore than I would turn necks by hand. Also, I just hand hold the drill, works great. And I would bet Ralph figured out that you flip the chamfer tool end for end to do the inside of the necks. Usually I do the inside first.

Good luck with your runout tool.

Later
Dave

 

[Richard Coody]

For mass.production power is good

But for my benchrest brass a light hand chamfer and debur is all i want. I do it every reloading cycle.

I found back when i used a case prep center i over chamfered. You aren't looking for a leather punch. Just takes a little to get the job done. A couple of.revolutions should do it. Power also seemed to leave brass a little rough. A couple of revolutions with a piece of scotchbrite pad cleaned it up.

 

[butchlambert]

Many years ago while I think he was working with Speedy, Stick made a case machining center with 6 arbors. I use one arbor for ID chamfer, OD chamfer, 2 for primer pockets, and have 2 left for whatever. Trouble is these 2 turn back asswards.

 

[Bill K]

Guess I am old fashioned, I still turn my Wilson/RCBS hand reamer (like shown in photo) by hand couple light turns on outside, then couple on inside, wala done and ready for bullet to seat. Very little effort is needed and I am 81 yrs old.

 

[Liven The Dream]

I have a 20 year old Sinclair Holder for the Drill ?

It is shinier !


Good idea

 

[D Coots]

If I was to over chamfer with this method I may want to not press so hard. Even a caveman can do it.

I used this method for years until my wife bought me a Giraud for Christmas a couple of years ago.

I shot a couple decent 5 shot groups a few years ago with this setup.Folks with arthritic hands may like it.

To each their own.
Later
Dave

 

[Dusty Stevens]

I like it dave. Glad you posted it for all to see. Ill post my way next time i have it out- very similar

 

[jds holler]

I love caveman tech, and consider myself a PhD with a masters in redneck economy.

Here is my solution, The jd Industry's Case Prep Center. The Delux Model also incorporates the attached Neck Turning Station. Use your imagination (in lizard mode) and you'll be able to visualize it. jd

 

[JimSC]

a piece sawed off off a old broomstick made a fine handle

 

[Ralph Littlefield]

a piece sawed off off a old broomstick made a fine handle

View attachment 1149825

Nice! That is another solution that arthritic hands will appreciate.

 

[D Coots]

Lots of cavemen around here.

 

[jds holler]

Lots of cavemen around here.

I'll have to post a pic of my case holder made from the jaw-bone of an ass. jd

 

[butchlambert]

I'll have to post a pic of my case holder made from the jaw-bone of an ass. jd

Probably from a forum member.

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[Mad_Charlie]

I chuck my rocketship up in my lathe, makes short work of it. Would never use a VLD type in the lathe though, Like the 20ga engineering.

 

[D Coots]

I hear if you pinch an o-ring things don't go well...