SpeTool Extra Long CNC Spiral Router Bits with Up Cut 1/8 inch Cutting Diameter, 1/4 inch Shank 3 inch Extra Long HRC55 Solid Carbide End Mill for Wood Cut, Carving

Work great cutting 1 inch wood on my cnc

I dont know what these reviews are about having issues with this bit. Ive been using them cutting intricate dovetails on cnc with both vertical and horizontal orientation on my cnc through 4/4 milled exotic hardwood. I obviously need this size bit to handle that. Now I go slow and take about 8 to 10 passes over that stock, but it works wonderfully. Im on my 3rd bit, because Id say I average about 4 dovetail boxes a week, over 6 months. My first bit is rough, but hasnt broke, and I still use it for roughing or test pieces cuts, and my newest one for the higher exotic exotics. So it cant be that I got lucky with a good lot of bits since Ive ordered more over time. Only thing that makes sense to me and from what I see from other reviews is they dont understand feeds, speeds, and depth per cut. Simple if you understand tha you wont have problems

Broke immediately. Super flimsy!!! Get a descent brand because these are junk

Sometimes you need to cut thicker wood. This bit helps with that task. I don’t know about the longevity yet.

Liked the length , able to cut 3/4 material with several passes. The 1/4 inch shaft is far better than using adapters that somtimes slip

I used this but in a two stage carving. It worked very well in the roughing stage and then followed by a 60° v-bit for the rest of the details. I highly recommend.

After three uses this bit broke in half. I was using it on a routine cut and it broke in half. I am not satisfied with this bit

Works great but gets dull fast

In middle of cut with cnc in hard wood the bit broke where it makes the transition from 1/4 to 1/16

Im glad I went with the extra-long bit. The bit that comes with the inlay kit works well but limits you to 1/4 temples and limits your inlay depth. The longer bit allows you to use 1/2 thick templates and still cut a 1/4 deep inlay. 1/4 template allows you to get 3/4 inlays.