1/8" 2-Flute Down Cut Spiral
The smallest bit in the drawer. 1/8” cutting diameter on a 1/4” shank, a reduced-neck tool rather than a straight one like D01 and D02 — the shank stays full-size for the collet, only the working end steps down.
Specifications
| Property | Value |
|---|---|
| Cutting diameter | 0.125” |
| Shank diameter | 0.250” (reduced-neck) |
| Flutes | 2 |
| Cutting length | 0.500” |
| Overall length | 2.000” |
| Geometry | Down cut spiral |
| Corner radius | None — square end |
| Material | Solid carbide |
| Coating | None |
Feeds & Speeds
For the X-Carve Pro and its 1.5 kW spindle. Same rpm ladder as D01/D02, but chipload and stepdown are halved for the thinner core — an 1/8” shaft doesn’t take the same load a 1/4” one does before it flexes or snaps.
| Material | RPM | Feed | Chipload | Plunge | Stepdown |
|---|---|---|---|---|---|
| Hard maple / oak | 14,000 | 110 ipm | 0.0039” | 15 ipm | 0.0625” |
| Soft maple / walnut / cherry | 14,000 | 120 ipm | 0.0043” | 15 ipm | 0.0625” |
| Plywood / veneered sheet | 16,000 | 140 ipm | 0.0044” | 15 ipm | 0.0625” |
| MDF / laminate | 16,000 | 150 ipm | 0.0047” | 18 ipm | 0.0938” |
| Softwood / pine | 16,000 | 150 ipm | 0.0047” | 18 ipm | 0.0938” |
| Acrylic / HDPE | 12,000 | 100 ipm | 0.0042” | 13 ipm | 0.0313” |
Notes
Maximum cut depth is 0.500”. Half of D02’s already-limited 0.75”, so this one is for shallow work only: fine dados, sign lettering, detail grooves. Nothing here goes through 3/4” stock — reach for D01 for that.
Always ramp — never plunge, same rule as every downcut in the drawer. A straight plunge augers chips down into a hole this small and packs it solid in a couple of flutes’ worth of travel.
Stepdown is halved from D01/D02, not just scaled by chipload. A 1/8” shaft under side load deflects and can snap where a 1/4” one just bends a little. Light passes protect the tool as much as the finish.
Reduced-neck shank: Fusion’s flat-end-mill tool type doesn’t model the neck taper between the 1/8” cutting edge and 1/4” shank explicitly (it forces the “shoulder” diameter to match the cutting diameter regardless of what’s set), but the shank diameter itself stores correctly for collet and holder clearance — the geometry that actually matters for toolpath collision checking.
Links
- Product page: Amana Tool 46200
- Machine: X-Carve Pro
- CAM library: Fusion hub library, Human Crafted (T12)