TX8628 – Round Bottom Router Bit Set (3-Piece, 6mm & 1/4″ Shank)
Price range: $3.49 through $14.41
3-piece round bottom router bit set designed for smooth groove cutting and decorative carving. Includes both 6mm and 1/4″ shank options with multiple cutting sizes for various woodworking needs.
Round-Bottom (Core Box) Router Bit — 6 mm Shank
Cut smooth round-bottom grooves, flutes, coves, and lettering channels with a durable, precision-ground core box bit.
Built from robust 45# steel and finished with a heat-resistant PTFE (Teflon) coating to reduce resin build-up and friction.
Sealed bearing (where applicable) provides smooth tracking on solid wood, MDF, and plywood.
Recommended spindle speed: 18,000–24,000 RPM; feed rate: 8–12 m/min (~26–39 ft/min).
Features
- Heat-resistant PTFE (Teflon) coating reduces pitch and resin build-up
- ±0.003″ manufacturing tolerance (≈ ±0.08 mm) for consistent accuracy
- Sealed, pre-lubricated bearing (where applicable) for smoother tracking
- Robust 45# steel body for stability and long service life
- Clean round-bottom channels for fluting, sign-making, and decorative coves
Specifications
- Name: Round-bottom (core box) router bit
- Item: 6 mm shank router bit
- Material: 45# steel
- Shank Diameter: 6 mm
- Compatible Materials: Solid wood, particle board, MDF, plywood
- Machines: Trim router, electric router, router table, engraving machine, CNC router
- Recommended Feed: 8–12 m/min (~26–39 ft/min)
- Recommended Spindle Speed: 18,000–24,000 RPM
- Tolerance: ±0.003″ (≈ ±0.08 mm)
- Bearing: Sealed & pre-lubricated (where applicable)
Package Includes
- 1 × router bit
Notes
- If the selected color is unavailable, a similar color may be shipped.
- Manual measurement tolerance: ±1–3 mm.
- Product color may vary slightly due to lighting and display settings.
Reference Data
| Machine | Speed | Type | Notes |
|---|---|---|---|
| Trim router | 10,000–30,000 rpm | Electric router | Speed settings: 1st 9,000; 2nd 12,000; 3rd 15,000; 4th 19,000; 5th 23,000 rpm |
| Router table / vertical router | 12,000–24,000 rpm | CNC engraving machine | Variable frequency up to 18,000 rpm |
| Diameter / Cutting Height (mm) | Max Speed (RPM) | Max Feed (mm/min) |
|---|---|---|
| ≤ 25 | 24,000 | 5,000 |
| 25.1 – 35 | 18,000 | 4,000 |
| 35.1 – 50 | 16,000 | 3,500 |
| 50.1 – 60 | 14,000 | 3,000 |
| 60.1 – 80 | 12,000 | 2,500 |
| ≥ 80 | 10,000 | 2,000 |
| type | 6mm x 1/2, 1/4" x 1/2, 6mm x 3/4, 1/4" x 3/4, 6mm x 1-1/8, 1/4" x 1-1/8, 6mm shank 3-piece set, 1/4" shank 3-piece set |
|---|
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