Is that a power tool or hand tool? It sounds useful if you were able to do the flashlight barrel with it.
It’s a device, similar to what is used to hone a cylinder block, you can put on a powertool, or use it with a (hand)wrench.
These things have six blades that you can adjust. I use a handwrench, and add only minute increments.
If you work too fast, there is a risk the reamer will bite into the bore and cause serious damage.
It takes some elbow-grease, and a few blisters, but it works.
So far, I’ve enlarged this Peli M6 and a Surfire 6P from 2 * CR123A to 18650.
A Jetbeam RRT-0 and a Lumapower D-mini from 1 * CR123A to 18350.
And a Warsun CT9T from 18650 to 21700.
Tip: before you start, measure the outside diameter of the light careful, it’s not a Tardis 
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Got the mcpcb’s I designed from JLCPCB. Preliminary testing is overall positive. Still have more testing to do
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I got good news today.
I did a sleep study the night before last, and today I was told that I have moderate sleep apnea.
This is excellent news because now my insurance will pay for a new CPAP machine and mask.
For my last sleep study, about 11–12 years ago, I was told that I don’t have sleep apnea.
I don’t think I got any sleep at all for my previous sleep study, and I think the results were incorrect.
I had to buy a CPAP machine with my own money 11–12 years ago.
The sleep study that I did the night before last was an at home test.
I think I got a few hours of sleep.
It was much more comfortable than my previous sleep studies, which were not at home tests.
I do have a lot of trouble sleeping without my CPAP machine, and for my sleep studies, I have to sleep without my CPAP machine.
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Today I got pizza from one of the most exclusive pizza places in my town. Dude makes 10/week, only on Sunday and out of his home. It was easily a top 3 pizza! (And I’ve eaten a lot of pizza!)
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That little duck knife is cute, where did you pick that up?
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Got this cheap floody light from Amazon. There was one in the box o lights pass around that I liked. Buy had already reached my limit. So I decided to pick one up. It’s actually a decent light with a very basic driver. High/low/double click for strobe/off. That’s it.
But it takes 4x18650’s for power!
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Got my M21E sft70 3000K today and my M21H 219F 1800K (8° optic) a few weeks ago 
M21E SFT70:
M21H 219F:
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Thank you!
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Rovyvon A8 G4 - main is a Nichia 219C 5000K 90 CRI, side lights : UV, white, red.
It’s replacing my trusty Nitecore Tini stainless steel- which is still working after around 10 years. It’s unkillable. The lack of a proper lockout (and it turning on in my pocket) was getting far too annoying.
I’ll be extremely happy surprised if the Rovyvon lasts that long. Already the USB C cover has come off the connector once in my pocket.
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TD07 is pretty nice, once you figure out the UI. (Hint: everything can be done with taps instead of full clicks. Only use full click to turn off)
These bills, man. These bills.
Looks like it’ll have a magnet