Has anyone used a 1/16bit and have recommendations on cutting speeds?
I am cutting a set of intricate joints that require a 1/16 bit. I would like to learn a little more before I try the bit. I hate the thought of breaking it on the first try.
I have been using a Bits & Bits 425-DNC062 1/16 X 1/4SH X 3/16″ LOC – Spiral Down Cut endmill for a while now. Mostly cutting oak and pine.
Pass Depth .0313 Stepover .025 (40%) with a Spindle Speed of 1600 and Feed Rate of 50 inches per minute Plunge rate 20 inches per minute.
These seem to work well for me.
Hope that helps.
You can also look up feeds & speeds for similar bit on Amana (toolstoday.com), Whiteside, and Onsrud websites.
I have been using the Amana #46282-K with very similar settings except at 18000rpm. Bit is still as sharp as when I started using it a month ago.
Hi Mike - it’s not possible to get a spindle speed of 1600 on the Makita - did you mean 16K? I generally use 2-2.5 on the Makita scale, which is 12-14K RPM.
Martin - general rule of thumb is depth of cut = 50% bit diameter, and stepover 40-50% bit diameter. Feed rates in 40-60ipm should be fine - lower if you want solid success, higher if you want to be adventurous. In my last project I ran my 1/16" end mill at 80ipm without a problem. Due to stupid human error, I ended up with a DOC of 200% before the bit snapped, and only because it hit the aluminum t-track. I was surprised how robust the bit was. YMMV.
Tom - Yes I did mean to say 16k. Thank you for noticing that.