Whiteside Router Bits RD4900 Standard Spiral Bit with Down Cut Solid Carbide 3/8-Inch Cutting Diameter and 1-1/4-Inch Cutting Length

★★★★★ 4.3 16 reviews

$63.85
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Management number 209035025 Release Date 2026/03/29 List Price $25.54 Model Number 209035025
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Whiteside Machine Company has been in the router bit business for over 30 years providing customer with quality products while at the same time striving to achieve complete customer satisfaction. Several woodworking magazines have tested Whiteside versus the competition and selected Whiteside as the winner for best router bits available in the market. Whiteside Machine Company was founded in 1970 as a general purpose machine shop in the basement of Bill & Bobbie Whiteside's home. Located in Western North Carolina near the furniture manufacturing town of Hickory, the company was often involved in making repairs or special parts for the furniture and woodworking field. A strong commitment to customer problem-solving, a can-do attitude, and innovative ideas, along with a growing core of dedicated employees, helped the business evolve into a manufacturer of woodworking equipment and tooling. Primarily through repeat business and referrals, the tooling business continued to grow to meet a demand for quality production router bits as well as custom application tooling. Today, Whiteside Machine occupies a 40,000 sq. ft. manufacturing facility and produces a complete line of solid carbide and carbide tipped router bits. Whiteside's quality, innovation, and customer commitment is still present in our superb product line, in the design of custom tooling to fill special customer requirements, and in the development of special machinery and tooling for our own manufacturing use. As always, Whiteside Machine is continuously striving to improve our product through new technology, improved production techniques, and ongoing research and development efforts; along with rigid quality control, vital customer feedback and extensive field testing. Whiteside Machine Company.

  • TOOL SPECS: Solid carbide, downcut 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.
  • DOWN CUT SPIRAL: Down Cut Spirals ensure a clean edge on the side of the material closest to the router. For clean, top edges in handheld routing or CNC applications.
  • HELIX: 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.
UPC 767654369890 785533448375 844278006216
Model RD4900
Cut Type Carbide-Tipped Cut
Size Name 3/8" x 1-1/4"
Brand Name Whiteside
Unit Count 1 Count
Item Weight 0.01 Ounces
Part Number RD4900
Manufacturer Whiteside
Item Diameter 0.38 Inches
Material Type Carbide
Cutting Length 1.25 Inches
Cutting Diameter 0.38 Inches
Number of Flutes 2
Global Trade Identification Number 00844278006216

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