SpeTool Extra Long Spiral Router Bit Down Cut 1/8 inch Cutting Diameter, 1/4 inch Shank 3 inch OVL HRC55 Solid Carbide End Mill for Wood Cut Carving Engrave

I ran this bit on my cnc machine at 60 inches per minute, pass depth of 0.1 inch spindle speed at 10,000 and carving oak 1/2 plywood it broke within a couple minutes. I didnt expect that.

No issues with this bit whatsoever at first. I use it on my X-Carve and it works perfect! The bad part that it became dull in about a month or so. Does not have a long life. If you buy just keep that in mind.

Broke in first 4 min .1 DOC 45 in/min speed. I bought 2 because they were same day shipping and needed them ASAP and I was afraid one would break. Ran the second bit at .09 ODC and 40 in/min and it worked fine.

Spe is one of my favorite bits. They really last a long time and they stay sharp for a long time. Ive only broke a few but its usually because of user error

Never buy any bits or tools made in mainland china. I realize the price is hard to pass up… But they are never worth the price a dog they break or they don’t work in the first place. For some reason China cannot even make a machine screw to tightly turn into a machine nut

The bit snapped after routing out a few butterfly joints. Lasted less than an hour of use.

Just what I need for the project I am doing with my daughter

Made the mistake of ordering the regular length first. This one is definitely needed for cnc machines.

Great

Broke under normal carving parameters.