SpeTool Down Cut Spiral Router Bit 1/16 inch Cutting Diameter with 1/4 inch Shank End Mill for Woodwork CNC Machine Tools

If you do a lot of intricate CNC engraving you will find this to be an often needed and invaluable tool. They are difficult to find, very fragile, and quite expensive considering the lack of durability. I try to use a 1/4 or 1/8 tool for clearing and only use this tool for cleaning up the detail edges. Even then, make sure you are taking VERY shallow cuts, and slow your feed rate down to like 30 per minute. Even having taken all those precautions if your cut takes you through a knot, or you are using particularly hard material like hickory, you will snap these off occasionally. If you are doing custom client jobs, make sure you keep more that one of these on hand and tread very gingerly with them. If you are just doing fine engraving and dont need the straight bit, the 1/16th tapered ball nose is far more durable, and might be a better choice for some jobs. Even for inlays I usually use the tapered bit. You just have to experiment a bit because youll have to make your pockets a little undersize to compensate for the taper. Once you get it down, it a much better way to go for inlays. The taper actually gives you tighter inlays and less gaps. When you do need the straight edges AND tight corners (epoxy fills, for example) this tool is invaluable. I have bought several of these in spite of the breakage, and will continue to buy them.

Use the SpeTools feeds and speeds chart for the right cut. Due to how small it is, this bit is delicate. This will cut some very nice details.

I have used this to make many signs in pine and fir. It works perfectlly when using oramask as it doesnt leave frizzies or lift the oramask. I am very happy with the sharpness and longevity of this bit.

This tool bit is being used on my Shapeoko CNC router, for small detail cut.

Great cutter for my CNC projects.

It started off doing well and I thought it was going to be a winner, but about 3/4 the way through the project it snapped. And yes I had the plunge rate and feed rate set accordingly.

I have used this bit on several jobs so far and if has worked as well as a higher priced bit that I recently dropped and broke. This bit is about 14 dollars less expensive and does a great job, although the feed rate is not as fast as the other bit.

Nothing…… it broke within 5 minutes

I bought this bit for creating a box join 1/2 inch with my CNC. Precision is a must. This bit did the job.

I recently discovered the SpeTool Spiral End Mills and I must say I am extremely impressed with their quality. I have purchased several of these end mills and have been consistently happy with each and every one. I use them in my CNC machine and they have held up well even after multiple uses. The spiraled design provides a smooth and efficient cut, making my machining tasks much easier. Additionally, the end mills are very affordable, making them a great value for their performance. I appreciate that I can purchase a durable, high-quality end mill without breaking the bank. Overall, I highly recommend the SpeTool Spiral End Mills to anyone in need of a reliable and affordable cutting solution for their CNC machining projects.