Longer Length of Cut

Does anyone know of an affordable 1/4 inch end mill that has a longer LOC? I was trying to pocket out a 2 x 6 with the included 1/4 inch and (good thing I stay with my machine) all of a sudden when I “thought” it was getting close to finishing, I had to stop the job because the collet nut started to eat into the wood. The included 1/4 end mill only has a LOC of 3/4" so…that kinda screwed me.

Some options at:


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Hey thanks Will, I’ll check these out.

They have longer cutting length bits on Amazon. Just keep in mind that the longer the bit the more run out you will encounter. Sometimes it is better to cut your tall projects in half and machine them in two or more pieces and then glue them together. This is not always aesthetically pleasing but sometimes it is the only way to cut a really tall project with a deep pocket.


The important point to learn from this is that you add this to your check list of things you check while designing a part (or before you start your router.) BTW, I’ve done similar, so I’m not just blowing smoke! :smiley:

We hurry things along because we want to see the results and miss key points in the design. A little more engineering with a little less art will keep you cutting good stuff. :smiley:


@circsaw, check out CTS

They have a few in longer lengths and the prices are good.


This one is pretty helpful for deeper cuts,


Thank You @Microwave_Monkey I will check them out for sure.

I think I may had seen that one and added it to my Amazon saved for later. That was before I knew anything about a LOC lol. So I’m going to check and see. I’ll tell you guys what though, PRIME has been pretty much REGULAR shipping since all this virus stuff so…make sure you’re not in a hurry when you shop Amazon.

U know what, I checked my orders and I already got this https://www.amazon.com/gp/product/B07VZM3PLL/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 coming to the house, but I just did a little research and wanted to ask, is this going to be bad for cutting wood since it’s 4 flutes? When I bout I just bought based on the LOC, I wasnt thinking about the flutes?

The one you linked is 3-flute?
As long as you adjust your feeds and speeds according to the number of flutes to maintain the same target chipload, AND watch your chip evacuation, it should be just fine.


Hey thanks. I will have to try it out on some scrap pieces first then so I can see what it’s looking like

Ok guys, so tell me this. I’ve been looking and looking for a longer 1/16th bit and the longest I can find is a 1/16th end mill with a 1/2 cutting height or LOC by Amama. If the majority of my material is .75" - 1" then how am I suppose to get cleaner, more precise through cuts if none of the 16th" bits have the cutting length to make it through?

Flip jig and cut from two sides? (which of course introduces the problem of a seam or offset along the midline)

Change to a larger/longer endmill for the finishing pass and then only have to clean up the tight corners?

Theoretical: Cut an example in scrap — identify the entry/exit points, add a small bumpout at that point, recut (the problem here is Carbide Create may change the entry/exit point when you edit the file — this would work in a program where you could position the entry/exit point, but of course such programs usually also allow ramping or leading in/out which would be a better solution).

Manually edit the G-Code to change the entry/exit?


I’d actually like to learn how to do a two sided cut. I seen a thumb nail on youtube, but got so caught up in whatever video I was watching, that when I cant remember the user or the name of the video. I’m gonna see if I can find a vid on two sided cutting.

Some links and resources for two-sided cutting at: https://wiki.shapeoko.com/index.php/Workholding#Two-sided_Cutting


I’ve been using this bit from Bits&Bits with great success making through cuts in 3/4 Poplar.


This was an AWESOME find sir, thank you very much, I’m about to grab one of these for sure. I may as well look to see if I can find any longer 1/8 inchers too lol

You are welcome. As a word of warning and a reminder, I broke several of them initially because my project had many small cutouts and I assumed I was off on the feeds and speeds, come to find out that the after making the final cut, the small cutout would be pulled up a little bit by the bit and the vacuum and then at some point during moves it would hit one of the raised pieces and break the bit. I increased my retract height and have not broken one since. Currently with the Poplar I am doing .1 depth of cut and 50 as the feed rate, and I think there is room to safely push it harder.


LOL, fine human being? Or the fine detail of my project? I’ll assume the former… I’m just really impressed by this forum. I’m new-ish to CNC and have gotten a ton of help just by searching the threads here. Happy to offer my 2 cents worth.