Amana Tool - RC-45711 In-Tech Insert Carbide V Groove 90 Deg x 11/16 Dia x 21/64 x 1/4 Inc

Does as advertised. Nice and clean work on a CNC router.

Cuts very cleanly. Nice clean lines. No chip out on baltic birch plywood.

it works very good and easy to use

I am making very nice cuts on my CNC with this bit. High quality. Amana bits cant be beat and Amazon prizes are nice especially with free shipping.

Acceptional durability at a low cost. Easy to find cheap replacement cutters

Perfect doesnt get any better than that

Let me preface this with the fact that I have worked as a machinist for 15 years. In general, this is a great design for an insert tool. I have always loved the ability to quickly change inserts when they wear down or break and the tool life on the inserts is good. However, my problem came when i had to change the insert for the first time. This is usually very simple with these types of bits across manufacturers. This bit in particular has a small design flaw that can be your undoing. Despite multiple attempts to align the bit correctly, I am still ending up with a flat bottom v from incorrect insert positioning. Usually, the insert is pushed into a tool up against a shoulder or centered on a countersunk screw to insure easy and proper positioning. This design has neither a shoulder or countersunk screw which allows for a lot of play and even using a caliper to set the recommended measurements for the insert has not fixed the issue. This problem ruined a $90 product I was making for a customer. It is such a shame that they came so close to a great design just to fall short. My recommendation is do some research and chose another product. If I am having this much trouble as an experienced machinist, I cant imagine the challenges faced by hobbyists and garage tinkerers.

Amanda produces high quality bits. Buy it

Like the product and works as described

Cuts great! Seems a bit buzzy in the spindle but cuts look great. For this price it seems like a steal. Would like to try a few others like this at some point.