Whiteside RU4900 Up Cut Spiral, 1/2″ Shank, 3/8″ Dia, 1-1/4″ CL, 3″ OAL
$80.84
- Whiteside part no. RU4900
- Shank: 1/2"
- Cutting Diameter: 3/8"
- Cutting Length: 1-1/4"
- Overall Length: 3"
Whiteside RU4900 — Up Cut Spiral, 1/2" Shank, 3/8" Dia, 1-1/4" CL, 3" OAL.
- Shank: 1/2"
- Cutting Diameter: 3/8"
- Cutting Length: 1-1/4"
- Overall Length: 3"
- Profile: Up Cut
Materials: Natural woods, composites, hard plastics, thin aluminum
Recommended RPM: 16,000-18,000 (max 24,000)
Spiral bits provide a shear cutting edge that leaves a smoother cut than standard router bits. Up cut spiral design provides the best control with hand or table routing. When creating dado’s this design brings chips up and out of the cut.
- TOOL SPECS: Solid carbide, up cut spiral with 3/8″ cutting diameter, 1/2″ shank, 1-1/4″ cutting length, and 3″ overall length for use in routers with a 1/2″ collet.
- UP CUT SPIRAL: Ideal for smooth finishes and rapid chip removal. Up cut spirals create a clean edge on the side of the material that is farthest from the router.
- HELIX: The upward cutting action removes chips efficiently, especially in deep cuts. The spiral helix ensures clean, crisp cuts while outperforming standard straight bits.
- MULTI-PURPOSE TOOLING: Plunge-capable bit for precision woodworking. Perfect for creating grooves, dados, slots, pockets, and more.
- MATERIALS: Performs best with hardwoods, softwoods, plywood, MDF, and hard plastics for versatile woodworking applications.
- MACHINES: Designed for hand-held routers, router tables, and CNC machines in a wide variety of applications.
Whiteside catalog page 4.
| Part No. | RU4900 |
|---|---|
| Series | Up Cut Spiral |
| Description | Up Cut Spiral, 1/2" Shank, 3/8" Dia, 1-1/4" CL, 3" OAL |
| Shank | 1/2" |
| Cutting Diameter | 3/8" |
| Cutting Length | 1-1/4" |
| Overall Length | 3" |
| Profile | Up Cut |
| Materials | Natural woods, composites, hard plastics, thin aluminum |
| Recommended RPM | 16,000-18,000 (max 24,000) |
| Part No. | Shank | Cutting Diameter | Cutting Length | Overall Length | Profile | Price |
|---|---|---|---|---|---|---|
| RU1600 | 1/4" | 1/8" | 1/2" | 2" | Up Cut | $27.96 Add to cart |
| RU1700 | 1/4" | 5/32" | 5/8" | 2" | Up Cut | $29.05 Add to cart |
| RU1800 | 1/4" | 3/16" | 3/4" | 2-1/2" | Up Cut | $27.96 Add to cart |
| RU1900 | 1/4" | 7/32" | 3/4" | 2-1/2" | Up Cut | $28.59 Add to cart |
| RU2075 | 1/4" | 1/4" | 3/4" | 2-1/2" | Up Cut | $27.07 Add to cart |
| RU2100 | 1/4" | 1/4" | 1" | 2-1/2" | Up Cut | $27.96 Add to cart |
| RU3100 | 5/16" | 5/16" | 1" | 2-1/2" | Up Cut | $44.02 Add to cart |
| RU4075 | 3/8" | 3/8" | 3/4" | 2-1/2" | Up Cut | $46.68 Add to cart |
| RU4100 | 3/8" | 3/8" | 1" | 2-1/2" | Up Cut | $50.33 Add to cart |
| RU4125 | 3/8" | 3/8" | 1-1/4" | 3" | Up Cut | $52.78 Add to cart |
| RU4675 | 1/2" | 1/4" | 3/4" | 3" | Up Cut | $36.49 Add to cart |
| RU4700 | 1/2" | 1/4" | 1" | 3-1/4" | Up Cut | $38.91 Add to cart |
| RU4800 | 1/2" | 9/32" | 1" | 3" | Up Cut | $100.93 Add to cart |
| RU4850 | 1/2" | 5/16" | 1" | 3" | Up Cut | $80.84 Add to cart |
| RU4875 | 1/2" | 3/8" | 3/4" | 3" | Up Cut | $77.20 Add to cart |
| RU4900 | 1/2" | 3/8" | 1-1/4" | 3" | Up Cut | $80.84 Add to cart |
| RU4950 | 1/2" | 7/16" | 1-1/4" | 3" | Up Cut | $80.24 Add to cart |
| RU5100 | 1/2" | 1/2" | 1" | 3" | Up Cut | $74.17 Add to cart |
| RU5125 | 1/2" | 1/2" | 1-1/4" | 3" | Up Cut | $77.20 Add to cart |
| RU5150 | 1/2" | 1/2" | 1-1/2" | 3-1/2" | Up Cut | $81.47 Add to cart |
| RU5200 | 1/2" | 1/2" | 2" | 4" | Up Cut | $96.07 Add to cart |
| RU6150 | 5/8" | 5/8" | 1-1/2" | 3-1/2" | Up Cut | $139.88 Add to cart |
| RU6200 | 5/8" | 5/8" | 2" | 4" | Up Cut | $150.82 Add to cart |
| RU7150 | 3/4" | 3/4" | 1-1/2" | 4" | Up Cut | $141.09 Add to cart |
| RU7200 | 3/4" | 3/4" | 2" | 4" | Up Cut | $152.02 Add to cart |
| RU7300 | 3/4" | 3/4" | 3" | 5" | Up Cut | $206.77 Add to cart |
| RU7306 | 3/4" | 3/4" | 3" | 6" | Up Cut | $289.00 Add to cart |
Brand
Whiteside
Need This Tool Customized?
Every machining application is different. If this tool is close to what you need but not an exact fit, General Cutting Tools can help modify it for your specific job, machine, material, or production requirement.
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Common Tool Customization Options
Diameter and OD Modifications
We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.
Bore Modifications for Saw Blades
Custom saw blade bore modifications are available for hole diameter changes, pinholes, mounting holes, and keyway cutouts to help match your machine setup and cutting requirements.
Length Adjustments
Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.
Shank Modifications
Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.