SpeTool Spiral Router Bits with UpCut 4 inch Extra Long1/4 inch Cutting Diameter 2 inch Cutting Length CNC Router Bit Carving Tool

This bit has served me well, use it on my cnc router. The price is very cheap for bits but the quality is there.

Quick tip: There is No 1/4 bit at a 2 cutting depth should be taken full-pass, unless its foam. Pretty much any bit at that side-load will stress and break at full depth. Easy pass depths and slow feed rates are the only hope. I consider this a specialty bit when working on deeper materials, just for the reach- never full depth. For XPS Foam (80% air), works great!

This tool is a great way to get your idea onto a piece of wood and make it look great.

Even taking very shallow cuts (~ 1/8) this bit did nothing but chatter. This left a horrible shoulder on my mortise. I switched to using a shorter bit from whiteside for the first portion of the cut, and it cut like butter. I am glad this mortise will be hidden, because otherwise this bit would have ruined my project.

I needed something with some length so I can use with my router and templates and this works great

This was much sharper and much more high quality than anticipated for the price. Ive used it now to cut several table tops with a router jig and it performed flawlessly.

Bought this bit for my circle jig and it did not last at all. Got about half ways of a circle (17”) and it snapped.

I needed this to CNC 1.75 inch thick glue up panels. At the time of this review probably have 100 hours on this but and its still working as well as the first day I used it.

I have never used a bit this long before. I was having some problems controlling it. I suspect control would come with time.

Needed this to cut multi later birch plywood 1.5 thick. Just went down in 1/4 steps and it cut fine. Because of its long length just go slower than you usually would with a short bit . Longer bits tend to break if you apply too much force. Great bit for the price and cut better than I expected very clean edges.