Foos Nano Tapered Ball Nose 3D Engraving Router Bit Sets - Solid Carbide - 1/4" Shank
Foos Nano Tapered Ball Nose 3D Engraving Router Bit Sets - Solid Carbide - 1/4" Shank
Part #: FB-1378, FB-9756, FB-5451, FB-7877, FB-6875, FB-8956
- FINE 3D DETAIL: A small ball tip carves fine detail and smooth 3D relief, while the thicker tapered body stays stiff and steady in deeper passes.
- MANY MATERIALS: Sharp solid carbide cuts cleanly in hardwood, softwood, MDF, plywood, acrylic, PVC, ABS, two-color engraving laminates and other plastics, plus aluminum, brass and carbon fiber.
- FITS YOUR MACHINE: 1/4 inch shank fits most CNC routers, desktop CNCs and trim routers with a 1/4" collet.
- FOOS NANO COATED: The coating cuts friction, so the bit runs cooler, resists pitch and resin buildup, and holds a sharp edge longer than an uncoated bit. Less cleanup between jobs.
- USA VETERAN-OWNED SUPPORT: US veteran-owned FOOS has sold router bits for 10 years. Message us and a real person answers. Each bit is laser-engraved with FOOS and its part number.
FOOS Nano Coated Tapered Ball Nose Router Bits, 1/4" shank, solid carbide.
What it is for: fine 3D carving, relief work, portraits, lithophanes and detailed sign work, with a thick tapered body that keeps the small tip steady. Sizes listed are tip radius.
Materials: hardwood, softwood, plywood, MDF, acrylic, PVC, ABS, laminates and other plastics, plus aluminum, brass and carbon fiber. Use lighter passes and suitable speeds in metals.
Fit: 1/4" shanks for 1/4" collets on CNC routers, desktop CNCs and trim routers.
FOOS Nano coating: the coating reduces friction at the cutting edge, so the bit runs cooler, resists pitch and resin buildup, and holds a sharp edge longer.
Every FOOS bit is laser-engraved with the FOOS brand and its part number, so reordering the right size is easy. FOOS is a US veteran-owned shop. Speeds and feeds depend on your machine, material and depth of cut. Message us and we will help you dial them in.
FOOS Part #s by pack: 6 Pack (2.0mm - 0.25mm): FB-1378, FB-9756, FB-5451, FB-7877, FB-6875, FB-8956; 4 Pack (1.0mm - 0.25mm): FB-1378, FB-9756, FB-5451, FB-7877; 3 Pack (2.0mm, 1.5mm, 1.0mm): FB-7877, FB-6875, FB-8956.
Speeds & Feeds
Starting values for 2-flute FOOS Nano Tapered Ball Nose bits at 18,000 RPM. Feed = RPM × 2 flutes × chip load. Plunge at about 1/3 of feed.
| Material | RPM | 0.25mm (FB-1378) | 0.5mm (FB-9756) | 0.75mm (FB-5451) | 1mm (FB-7877) | 1.5mm (FB-6875) | 2mm (FB-8956) | Stepover |
|---|---|---|---|---|---|---|---|---|
| Softwood | 18,000 | 30 IPM .0008 chip .01" depth |
35 IPM .001 chip .02" depth |
45 IPM .0012 chip .03" depth |
50 IPM .0014 chip .039" depth |
60 IPM .0017 chip .059" depth |
70 IPM .002 chip .079" depth |
8% |
| Hardwood | 18,000 | 25 IPM .00064 chip .008" depth |
30 IPM .0008 chip .016" depth |
35 IPM .00096 chip .024" depth |
40 IPM .00112 chip .031" depth |
50 IPM .00136 chip .047" depth |
60 IPM .0016 chip .063" depth |
8% |
| Plywood / MDF | 18,000 | 30 IPM .0008 chip .01" depth |
35 IPM .001 chip .02" depth |
45 IPM .0012 chip .03" depth |
50 IPM .0014 chip .039" depth |
60 IPM .0017 chip .059" depth |
70 IPM .002 chip .079" depth |
8% |
| Acrylic | 18,000 | 20 IPM .0006 chip .008" depth |
25 IPM .00075 chip .016" depth |
30 IPM .0009 chip .024" depth |
40 IPM .00105 chip .031" depth |
45 IPM .00127 chip .047" depth |
55 IPM .0015 chip .063" depth |
8% |
| Aluminum | 18,000 | 5 IPM .0002 chip .002" depth |
10 IPM .0003 chip .004" depth |
15 IPM .0004 chip .006" depth |
20 IPM .0005 chip .008" depth |
20 IPM .0006 chip .012" depth |
25 IPM .0007 chip .016" depth |
5% |
These are starting points. Adjust for your machine's rigidity and material, and listen to the cut. Feed in inches per minute (IPM). Depth is per finishing pass, after a roughing pass with a larger bit. Stepover is a % of tip diameter (2 x tip radius). Lower it for a smoother surface.