No products in the cart.
TR4778 –Core Box Router Bit(12mm Shank)
$32.75
TR4778 core box router bit with 12mm shank. Ideal for woodworking grooves, fluting, and decorative cuts, delivering smooth rounded channels with durable and precise performance.
“`html
Core Box / Round Nose Router Bit for Woodworking Grooves (12mm Shank)
Professional chamfer bit for clean 45° bevels, edge breaking and decorative faceting on furniture parts and panels.
Built from durable 45# steel with a heat-resistant PTFE (Teflon) coating and sealed bearing (where applicable) to deliver smooth, accurate cuts in hardwood, 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 minimizes resin & pitch build-up
- ±0.003″ tolerance (≈ ±0.08 mm) for consistent precision
- Sealed, pre-lubricated bearing (where applicable)
- Robust 45# steel body for stability and long service life
- Ideal for 45° bevels, edge breaking, and decorative chamfers
Specifications
- Name: Chamfer router bit
- Item: 12 mm / 12.7 mm (1/2″) shank router bit
- Material: 45# steel
- Shank Diameter: 12 mm / 12.7 mm
- Compatible Materials: Solid wood, particle board, MDF, plywood and other wood composites
- 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
- Packaging or label color may vary slightly depending on stock availability.
- Manual measurement tolerance: ±1–3 mm.
- Product color may differ slightly due to display and lighting conditions.
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 |
“`
| shank size | 12mm shank |
|---|
Related products
1/2 in (12.7 mm) Shank Router Bits
TN890 – 2-Piece 120° Chamfer & Joint Router Bit Set (12mm & 1/2″ Shank)
$20.96
1/2 in (12.7 mm) Shank Router Bits
TR130 – Carbide Insert Router Bit with Replaceable Knives (8mm, 12mm & 1/2″ Shank)
Price range: $9.17 through $78.60
1/2 in (12.7 mm) Shank Router Bits
TL070 – Carbide Spiral CNC Router Bit with Top Bearing (12mm & 1/2″ Shank)
1/2 in (12.7 mm) Shank Router Bits
RTL0763 – Carbide Flush Trim Router Bit Set with Bearing (12mm & 1/2″ Shank, Multiple Sizes)
Price range: $3.45 through $13.80
1/2 in (12.7 mm) Shank Router Bits
TL005 – 4-Piece Drawer Front & Beading Router Bit Set (12mm & 1/2″ Shank)
$39.30
1/2 in (12.7 mm) Shank Router Bits
TN32 – 2PCS Carbide Tenon Cutting Router Bit Set (12mm & 1/2″ Shank)
$10.91
1/2 in (12.7 mm) Shank Router Bits
TD070 – 3pcs Ogee Rail & Stile Backcutter Router Bit Set for Cabinet Doors (12mm & 1/2″ Shank)
$34.93
1/2 in (12.7 mm) Shank Router Bits
S0503 – Drawer Front Molding Router Bit (Straight Edge, 12mm & 1/2″ Shank, Carbide Cutter)
$7.42