Freud Up Cut Spiral Ball Nose (72-101)

The Freud 72-101 Up Cut Spiral Ball Nose is a solid carbide CNC router bit designed for grooving, edge work, and 2D or 3D carving in wood, wood composites, plastics, and aluminum. This is a router bit designed for CNC carving and detailed routing. Model Number: 72-101. If you need a small-diameter ball nose bit that can handle detail work while still clearing chips efficiently, this is the kind of bit you reach for.

Its cutting profile combines a 1/4 inch overall diameter, 1/8 inch radius, and 1/2 inch carbide cutting height, which makes it a practical size for contouring, grooves, and shaped toolpaths where a square-cut end mill is not the right fit. The two-cutter design gives you a good balance between finish quality and manageable feed rates, while the up-cut spiral helps move waste out of the cut instead of packing it down into the groove.

Freud built this bit from Premier Solid Carbide and uses its TiCo Super Density Carbide with chromium to improve edge life. That matters on CNC work because small bits do not have much room for error. When the edge stays sharper, you get more consistent surface quality, less burning, and less time spent changing bits in the middle of a job.

The Black I.C.E. coating is not just there for looks. Freud uses it to help the cutting edge run cooler and improve chip evacuation. On plastics and aluminum especially, heat control is a big deal. A bit that sheds chips well and stays cooler is less likely to leave a rough finish or load up when the cut gets longer.

With a 1/4 inch shank and a maximum speed rating of 24,000 RPM, the Freud 72-101 Up Cut Spiral Ball Nose fits common router and CNC collet setups that accept 1/4 inch tooling. That makes it a useful option for CNC makers and router users who want one bit that can move between detailed woodworking, composite work, plastic routing, and light aluminum carving applications, as long as the machine and setup are matched to the material.

This bit is a smart buy for CNC users who care more about cut quality, chip control, and bit life than just grabbing the cheapest cutter on the shelf. It makes the most sense for makers, sign builders, custom woodworkers, and serious hobbyists doing detailed carving, contouring, and groove work. If your work involves repeat toolpaths and you want a small solid carbide ball nose router bit that is built specifically for CNC use, this one checks the right boxes.

Bit Type Up Cut Spiral Ball Nose Router Bit Bit Diameter 1/4 in Cutting Height 1/2 in Overall Length 2-1/2 in Radius 1/8 in Shank Diameter 1/4 in Number of Cutters 2 Max Speed 24,000 RPM Material Solid Carbide Made In Italy

Freud 72-101 Up Cut Spiral Ball Nose is a smart pick for small-detail CNC work

If you're doing contouring, groove work, or carved detail and you want a bit that is built for cleaner evacuation and longer life, this one makes a lot of sense.

• Who it's for: CNC makers, custom woodworkers, sign builders, and serious hobbyists cutting wood, composites, plastics, or light aluminum.
• Why it stands out: You get solid carbide construction, TiCo carbide, Black I.C.E. coating, and an up-cut ball nose profile that is aimed at finish quality and bit life instead of just getting through the cut.
• Worth knowing: This is a specialized router bit, not a general-purpose straight bit. It shines when you need shaped toolpaths and detail work, and you need a machine that accepts a 1/4 inch shank.

• What materials can this bit cut? It cuts wood, wood composites, hard and soft plastics, and aluminum.
• Is this bit made for CNC use? Yes. Freud specifically states it is designed for CNC makers and for 2D and 3D carving applications.
• What shank size does it use? It uses a 1/4 inch shank, so it fits routers and CNC setups that accept 1/4 inch tooling.
• What is the maximum rated speed? The maximum speed is 24,000 RPM.