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

Worked great on the 1 1/2 inch mdf. Got the done. After the job the operator tried it on some 1 1/2 inch oak with out changing speed/feed. He got 2 of the 6 3/4 thru holes before the bit snapped.

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

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.

Use in my cnc for 1.5 inch pine and while cutting multiple passes all stayed aligned.

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.