Whiteside RD4125 Down Cut Spiral, 3/8″ Shank, 3/8″ Dia, 1-1/4″ CL, 3″ OAL
$52.78
- Whiteside part no. RD4125
- Shank: 3/8"
- Cutting Diameter: 3/8"
- Cutting Length: 1-1/4"
- Overall Length: 3"
Whiteside RD4125 — Down Cut Spiral, 3/8" Shank, 3/8" Dia, 1-1/4" CL, 3" OAL.
- Shank: 3/8"
- Cutting Diameter: 3/8"
- Cutting Length: 1-1/4"
- Overall Length: 3"
- Profile: Down 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. The down cut spiral design provides the best top surface edges, ejecting chips away from the router when routing through material. This design also decreases the tendency to lift thin/small work pieces during CNC routing.
- TOOL SPECS: Solid carbide, down cut spiral with 3/8″ cutting diameter, 3/8″ shank, 1-1/4″ cutting length, and 3″ overall length for use in routers with a 3/8″ collet.
- DOWN CUT SPIRAL: Down Cut Spirals ensure a clean edge on the side of the material closest to the router. Perfect for clean, top edges in handheld routing or CNC applications.
- HELIX: Ideal for shallow grooves, dados, and inlays with a handheld router. The spiral helix offers a shearing action for clean, crisp cuts while outperforming standard straight bits.
- CLEAN FINISH: The downward cutting action eliminates tearout when cutting grooves, dados, slots, and pockets in veneer, laminates, and plywood for precise woodworking results.
- STABILITY: Great for holding thin sheets or small pieces in place during CNC routing operations, ensuring precision and stability. Ejects chips away from the router when cutting through material.
- MATERIALS: Performs best with hardwoods, softwoods, plywood, MDF, laminates, veneers, and hard plastics for versatile woodworking applications.
Whiteside catalog page 4.
| Part No. | RD4125 |
|---|---|
| Series | Down Cut Spiral |
| Description | Down Cut Spiral, 3/8" Shank, 3/8" Dia, 1-1/4" CL, 3" OAL |
| Shank | 3/8" |
| Cutting Diameter | 3/8" |
| Cutting Length | 1-1/4" |
| Overall Length | 3" |
| Profile | Down 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 |
|---|---|---|---|---|---|---|
| RD1600 | 1/4" | 1/8" | 1/2" | 2" | Down Cut | $27.96 Add to cart |
| RD1700 | 1/4" | 5/32" | 5/8" | 2" | Down Cut | $29.05 Add to cart |
| RD1800 | 1/4" | 3/16" | 3/4" | 2-1/2" | Down Cut | $27.96 Add to cart |
| RD1900 | 1/4" | 7/32" | 3/4" | 2-1/2" | Down Cut | $28.59 Add to cart |
| RD2075 | 1/4" | 1/4" | 3/4" | 2-1/2" | Down Cut | $27.07 Add to cart |
| RD2100 | 1/4" | 1/4" | 1" | 2-1/2" | Down Cut | $27.96 Add to cart |
| RD3100 | 5/16" | 5/16" | 1" | 2-1/2" | Down Cut | $44.02 Add to cart |
| RD4075 | 3/8" | 3/8" | 3/4" | 2-1/2" | Down Cut | $46.68 Add to cart |
| RD4100 | 3/8" | 3/8" | 1" | 2-1/2" | Down Cut | $50.33 Add to cart |
| RD4125 | 3/8" | 3/8" | 1-1/4" | 3" | Down Cut | $52.78 Add to cart |
| RD4675 | 1/2" | 1/4" | 3/4" | 3" | Down Cut | $36.49 Add to cart |
| RD4700 | 1/2" | 1/4" | 1" | 3-1/4" | Down Cut | $38.91 Add to cart |
| RD4800 | 1/2" | 9/32" | 1" | 3" | Down Cut | $100.93 Add to cart |
| RD4850 | 1/2" | 5/16" | 1" | 3" | Down Cut | $80.84 Add to cart |
| RD4875 | 1/2" | 3/8" | 3/4" | 3" | Down Cut | $77.20 Add to cart |
| RD4900 | 1/2" | 3/8" | 1-1/4" | 3" | Down Cut | $80.84 Add to cart |
| RD4950 | 1/2" | 7/16" | 1-1/4" | 3" | Down Cut | $80.24 Add to cart |
| RD5100 | 1/2" | 1/2" | 1" | 3" | Down Cut | $74.17 Add to cart |
| RD5125 | 1/2" | 1/2" | 1-1/4" | 3" | Down Cut | $77.20 Add to cart |
| RD5150 | 1/2" | 1/2" | 1-1/2" | 3-1/2" | Down Cut | $81.47 Add to cart |
| RD5200 | 1/2" | 1/2" | 2" | 4" | Down Cut | $96.07 Add to cart |
| RD6150 | 5/8" | 5/8" | 1-1/2" | 3-1/2" | Down Cut | $139.88 Add to cart |
| RD6200 | 5/8" | 5/8" | 2" | 4" | Down Cut | $150.82 Add to cart |
| RD7150 | 3/4" | 3/4" | 1-1/2" | 4" | Down Cut | $141.09 Add to cart |
| RD7200 | 3/4" | 3/4" | 2" | 4" | Down Cut | $152.02 Add to cart |
| RD7300 | 3/4" | 3/4" | 3" | 5" | Down Cut | $206.77 Add to cart |
| RD7306 | 3/4" | 3/4" | 3" | 6" | Down 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.
We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.
Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.
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.