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Internet #206578624

Model #48-22-4255

Store SKU #1002437693

  • Designed for easy deburring of copper tubing and PVC
  • Durable, all-metal construction with heat-treaded blade
  • Stores easily in pocket or tool bag with slide-resistant clip
  • See More Details

Frequently Bought Together


Product Overview

The Milwaukee Reaming Pen provides easy deburring of copper tubing and PVC. The tool is constructed with an all-metal design for durability through demanding jobsite use. The blade is heat treated and black oxide coated for extended life. A slide resistant clip allows easy storage in the users pocket or tool bag for quick access.
  • Pen style reamer
  • All-metal design
  • Slide resistant clip
  • Heat treated blade
  • Black oxide blade
  • Limited lifetime warranty
  • Shop All Milwaukee Tools

Info & Guides

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Product Depth (in.)
5.5 in
Product Length (in.)
5.5 in
Product Thickness (in.)
.32 in
Product Width (in.)
.4 in


Compatible Pipe Material
Drive Style
No Additional Features
Number of Pieces
Tools Product Type
Hand Tool

Warranty / Certifications

Manufacturer Warranty
Limited Lifetime

Questions & Answers


Can you ream emt Conduit with it ??

Asked by Druer January 23, 2021

Yes my primary use is copper piping

How do I remove the blade

Asked by NBHD October 30, 2019

the blade is not replaceable

is the blade supposed to be able to spin?

Asked by kampen January 18, 2019

Yes, it should move freely.

is the blade replaceable

Asked by Johndoe August 3, 2018

Can Milwaukee Electric please explain how to replace the blade? I broke mine off and cannot figure out how to replace it. Thanks

Can this be used on aluminum?

Asked by Jbone February 17, 2018

Yes, as aluminum is soft like copper it works just as well

Will this tool work on 1/4 " soft copper tubing?

Asked by Dutch January 31, 2018

Yes it might be a tight squeez tho

Is it able to change blades or disposable?

Asked by jm February 14, 2017

The blades are replaceable, I would recommend purchasing the Milwaukee replacements as they may differ from other brands

where I can get replacement blades?

Asked by John February 9, 2017

available at Home Depot and most hardware stores

Could this be used to ream EMT pipe?

Asked by Adam January 5, 2017


Customer Reviews

  • 4.8
    out of 96 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 96 reviews
yes you can change blade
I love this handy little tool.took me a while to change blade but take my advise it is simple.Put it in a vise get a pair of pliers and pull straight out with force and ta da.
by Mrfabricator
2 people found this helpful
This is the first one I've had. I'm happy with it.
This is the first one I've had. I'm happy with it.
by Bfats
Blade is replaceable
Creates a nice smooth surface on the inner diameter of pipe. The blade is replaceable as milwaukee indicates. I removed the blade by using a crescent wrench on the right angle at the end of the blade. With a little bit of force it comes striaght out. Replacement blades are 48-22-4257. They come in a pack of 3. Once blade is removed simply insert a new one.
by AHeiss
1 person found this helpful
Handy and compact
There are both good and bad aspects of this tool, but the good ones certainly outweigh the bad. This tool is compact. Most higher end reamers are bulky and don't have the ability to just slip into your shirt pocket. This little guy is about the size of a pencil. It has a high quality bit and the movement is pretty decent. There is also a shirt clip attached to the handle to allow you to clip it to whatever you have to carry it around with. The bad... The bit is not interchangeable as far as I can tell. Start working on harder materials like steel, tungsten or ceramic and you will wear this guy out pretty quick. The only option is to buy a new one. But if you regularly use it to work with brass, copper, aluminum, plastics, etc. then you should be able to see some long life from this compact little workhorse.
by Greg
1 person found this helpful
A handy tool for cleaning pipe
I'm not a professional plumber but I do work with PVC around the house for plumbing and fish pond projects. In addition to cutting pipe I drill a lot of holes for strainers and drainage with PVC. Rounding off corners has always been a problem. I don't want the sharp edges left from drilling or cutting, but never had a good quick fix. Enter the reaming pen. Quick, effective, simple to use. Put the cutter end in the pipe or hole, run it around the edge a few times, the edge is rounded over. There is a small learning curve to get the right bite on the edge to produce a smooth corner but for plumbing and fish pond work it seems fine.
by Pete
1 person found this helpful
Smooth Operation
The reaming pen was used to de-bur cut ends of PVC and copper pipe/tube, as indicated on the packaging. A saw-cut piece of PVC pipe was used as well as a piece of copper tube, cut with a roller type tubing cutter. The ragged edges and shards of PVC were quickly smoothed down..in fact, in PVC, the cutting action is rather aggressive, so some finesse is called for to prevent "beveling" the inside edge of the pipe. Reaming the copper tube also requires some care to avoid scoring the inside surface of the tube, which may require cleaning out the copper particles, if the application involves any components which could be adversely affected by metallic particles. Although not advertised for use on aluminum, it was successfully used to de-bur several holes drilled in an aluminum plate. All in all, a convenient tool to keep clipped in your pocket when working with any of the above materials.
by DonK
1 person found this helpful
by HomeDepotCustomer
Use on copper tube. Works great. Only downside...
Use on copper tube. Works great. Only downside is - no storage for spare blade. However it's thinner than the tools that have blade storage and fits in a shirt pocket. Well constructed. Nice tool.
by Tim
This reamer is great I keep it in my front...
This reamer is great I keep it in my front pocket of my Hi viz vest so when I’m running pvc Conduit I never have to look for it super handy to have all my workers have one they love it to Cause it’s one less bulky item to have on them specially when they’re in the trenches
by James
by RM
Showing 1-10 of 96 reviews