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Barrel Cleaner/Pen Mill Kit

Item #
74% of 100
Prepare your pen blanks properly! The trimmer trims the ends of the blank to the exact size of the brass tube and also leaves a flat edge on the blank for a flush meeting with bushings. Pilot shafts clear out any glue that may be left in the brass tube. Your pen assembly will be much easier!
(1) Cutter Head
(4) Pilot Shafts
(1) Adapter Tube
More Information
Manufacturer Part Number RZ-PM043-6E
Weight 0.3500
Tech Spec
  • 3/4" diameter cutter head
  • Pilot shafts fit 7mm, 'O' size, 3/8" and 10mm diameter barrels
  • Adapter tube is for trimming tubes that require an 8mm diameter hole in the blank
Type Barrel Cleaner, Mill
3.7 / 5.0
73 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Works as intended
Works very well for what it's designed for. I would purchase it again if needed. It makes the process of prepping blank much easier.
March 11, 2020
1 month ago
Woodworking Experience:
What I needed
With all the different size tubes used in pen making, it only made sense to have the various size barrel cleaners. I haven't used them all but the ones I have work well.
August 31, 2019
8 months ago
Woodworking Experience:
Seam Rippers
Great product at good price!
I’m just starting out this was the best thing I invested it, now my ends are flat and fits right up to the seam rippers.
July 5, 2019
1 year ago
Woodworking Experience:
Easy to use
This tool kit is easy to use and does a great job!
March 10, 2019
1 year ago
Woodworking Experience:
A great deal.
The Rockler Barrel Cleaner and Pen Mill is the best deal on the market. The quality of the cleaner shafts is superb. The 3/4" squaring mill is well manufactured using quality steel. The cutter blades remain sharp after many repeated uses. I recommend this kit to anyone who needs to clean the copper insert for pen construction as well as square the blank ends at the same time.
January 30, 2019
Woodworking Experience:
Works great. It’s versatile and covers a variety of pen kits.
January 23, 2019
1 year ago
Woodworking Experience:
Barrel cleaner-awesome tool!
Being new to pen turning, I look for products from known vendors. Rocker offers quality tools and products at reasonable prices. Tool works well and has been valuable in turning my projects. Highly recommended and value priced.Great service and knowledgeable staff, too.
January 13, 2019
1 year ago
Woodworking Experience:
Excellent set. Everything needed to turn most pens. Very clean trim.
December 17, 2018
over 3 years ago
Woodworking Experience:
Works well
Works well for the most popular tube sizes.
December 15, 2018
1 year ago
Woodworking Experience:
Very good
It works great does the right job
December 8, 2018
1 year ago
Woodworking Experience:
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 68 answers
Why did you choose this?
Rockler Store
This is one of those speciality tools for certain things and since I am getting into pen turning I figured it was a good tool to have on hand.
Barry K on Feb 29, 2020
Needed this to turn pens
Darla S on Dec 14, 2019
This is one of those speciality tools for certain things and since I am getting into pen turning I figured it was a good tool to have on hand.
Barry K on Feb 29, 2020
because I need it
Mark S on Feb 20, 2020
Needed this to turn pens
Darla S on Dec 14, 2019
I needed a new one
Lee M on Dec 1, 2019
I know that I need one set of this. Thank you
Darelyn P on Oct 21, 2019
Flexibility for use with multiple pen kits.
robert w on Aug 26, 2019
part of making pens
Sylvie B on Jul 13, 2019
to replace older item
Thomas B on Apr 6, 2019
Pen Turning
MURRAY F on Mar 17, 2019
Need it to complete the tooling I want for making pens
Michael Mangus J on Mar 9, 2019
Only needed slimline, but will need other sizes in the future.
Paul W on Feb 18, 2019
Needed for making pens with sons.
Jane L on Feb 17, 2019
New to pen turning and need a barrel cleaning set.
Andrew M on Feb 15, 2019
stripped set screw on other one
Edward R on Feb 13, 2019
needed this one for pen turning
chris h on Feb 5, 2019
Best priced kit!
Philip F on Feb 3, 2019
Screwed up pen barrel need to clean it out
David J on Jan 26, 2019
easier to make pens
byron a on Jan 15, 2019
Needed one. Seemed like a good value.
Terrance W on Nov 22, 2018
Looks useful to me
David Drury D on Oct 21, 2018
I need a mill kit for pens.
Jesse S on Oct 16, 2018
For the variety of pen kit types.
Daniel S on Aug 17, 2018
None of your business
Jonathan H K on Jun 30, 2018
only one available for Longwood pen kit
Gerald C on May 30, 2018
needed to make pens a gift for my daughter
B I on Feb 27, 2018
want to try and see if this will solve a problem I have now.
jpc on Sep 6, 2017
Needed different size than I had.
John N on Aug 15, 2017
Complete kit for my pen turning needs
ANDREW S on Jul 13, 2017
need to complete pen kits
Michael Y on Jun 17, 2017
Need this to begin
Don H on Jun 13, 2017
Because my other barrel trimmer is dull, and I need the other sizes.
William on May 19, 2017
Only way to drill for 8mm inserts.
Charlie J on Mar 19, 2017
Just started, needed tool, good price
Robert on Mar 19, 2017
Ronald B on Feb 25, 2017
BUY IT - might as well you will need all the sizes sooner or later.
Glenn B on Feb 8, 2017
Finally got an old lathe from my father in law working this way don't have to borrow a friends
John G on Feb 1, 2017
looks decent and fair price
alexander h on Jan 4, 2017
Just started pen turning and buying tooling that i need
Bobby W on Dec 28, 2016
best value vs the pen kit
Alex B on Dec 14, 2016
To make pens
Michael A on Dec 4, 2016
Clean up tubes and square pen blank ends
Gerald V on Nov 30, 2016
Good beginner pen making.
Cathy E on Nov 25, 2016
new to pen turning just needed some items.
Kenneth M on Nov 19, 2016
Best deal with the most accessories. Very affordable.
Michael R on Oct 30, 2016
needed it
ANGELA S on Aug 30, 2016
DAVID K on Aug 12, 2016
Necessity item
Morris H on Aug 12, 2016
Frank C on Aug 4, 2016
Needed new one
Gary W on May 16, 2016
Making pens for friends.
Stanley F on May 10, 2016
because I need it
Mark S on Feb 20, 2020
I needed a new one
Lee M on Dec 1, 2019
This should be easy to use, but I can’t even get the pilot shafts into the cutter head! The little Allen wrench doesn’t seem to fit the little threaded screw hole - which I presume is supposed to open so the cutter will slide into place on the pilot shaft, then tighten to hold it in place. Very frustrating! What am I doing wrong?
Ellen B on Oct 6, 2017
BEST ANSWER: Sounds like your doing everything correctly. Contact customer support.
The pen mill came with the starter kit but there are no instructions with it. Should there have been? Can mill be used on the lathe?
Nick A on Mar 24, 2020
BEST ANSWER: instructions would be nice-but not necessary. Pen mill can be used on a lathe but at slow speed. It works best on a drill press(low speed) if vertical & horizontal axis are correctly set.
does this also work for 8mm?
Noah S on Jan 26, 2016
BEST ANSWER: Hi Noah. Yes this will trim an 8mm blank. You attach the 7mm pilot and slip the brass sleeve over it. This brings the diameter up to 8mm.
What drill speed is best for the cutter head ?
Also cuttings getting stuck in teeth. Is cutter dull? Drill speed too slow, too fast??
Donn M on Aug 16, 2015
BEST ANSWER: If using a drill press, you want to use a lower RPM, similar to what you would use for a typical wood drill bit. In my opinion, I do it by hand. I turned a handle and attach the appropriate bit for the blank. Also if your cutter head is being filled with shavings, sound like your wood is to long past your sleeve. You really only want your wood about 1/16" longer than your sleeve, so you don't have much wood to cut.
What is the adapter tube used for?
Joshua D on Oct 10, 2019
BEST ANSWER: Sorry follow up. It says.

Tha “0” adapter sleeve (F) slides onto shaft (B) and is used for pen kits that require “0” pen size tubes

In other words there must be a pen kit that is between the B and C size and that proves a little extra thickness. (I have not used the adapter personally)
Does this cutter head have 6 blades instead of the usual 4?
Amy M on Nov 18, 2015
BEST ANSWER: Yes, the cutter head has 6 blades.
What is the size of the set screw? It stripped out and I need to replace.
Phantasms on Dec 20, 2018
BEST ANSWER: The metric allen set screw is M5
Does rockler carry a higher quality mill?
Mike N on Jul 22, 2017
BEST ANSWER: Yes this is a high quality kit.
What size is the shaft that you chuck in the drill
Peter H on Feb 14, 2016
BEST ANSWER: One quarter inch
Prop 65 WarningWARNING: Cancer & Reproductive Harm -

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to