SpeTool 5Pcs Ball Nose Router Bits 1/8" Cutting Diameter Milling Tool HRC55, 1/8" Shank Up Cut Spiral CNC Tool

These bits are awesome. I’ve successfully used them on brass, aluminum, and grade 1 titanium. Seem to be very high quality and long lasting.

Ball nose bit best for 2D and 3D carving .TAC coating extends carbide bit’s life up to 2.5 times. Up cut clear ships well.

Cutting small 1mm x 2mm x .5 mm pockets- works well on cast acrylic

Being that I'm new to cnc, I bought these bits and they have worked well so far. I have done several projects and I'm still using the first one.

This is the third set of SpeTool carbide bits I have bought and all I can say is "WOW". All of the carbide bits I have purchased so far have held up and have yet to break into the second one, these things have some serious longevity. Not only that, but they are extremely durable as long as you are conscious of your pass depth and speed. My application has been only wood, so I cannot speak to other mediums. I am now a SpeTool devoted customer and will purchase their bits above and beyond any other brand if available. Definitely recommend these to anyone seeking a CNC bit manufacturer.

Very good

The 1/32 ball endmills worked well in brass, but steel was another story. Even using reduced feeds and speeds they just didn't hold up in harder materials.

Works great in small cnc machine