Whiteside RD1600 Spiral Downcut Router Bit – 1/8-inch Diameter, 1/4-inch Shank, 1/2-inch Cutting Length

Overview

The Whiteside RD1600 Spiral Downcut Router Bit is a durable solid carbide tool designed to deliver clean, crisp edges across veneer, laminates, and plywood. With a 1/8-inch cutting diameter, a 1/4-inch shank, a 1/2-inch cutting length, and an overall length of 2 inches, this bit is built for use in routers with a 1/4-inch collet.

Design and cutting action

• Downcut spiral for a clean edge on the side closest to the router, ideal for top-edge work in handheld or CNC routing.
• The spiral helix provides a shearing action for smooth cuts in shallow grooves, dados, and inlays, outperforming standard straight bits.
• Downward cutting action reduces tear-out when routing veneer, laminates, and plywood, yielding precise pockets, slots, and grooves.
• Built-in stability helps hold thin sheets or small pieces in place, improving accuracy while ejecting chips away from the cut.

Practical use and results

• Ideal for top-edge finishes on thin stock, laminates, and veneer where the facing surface remains pristine.
• Suitable for grooves, dados, and inlays in light to medium thickness materials, with predictable performance in both CNC and handheld routing.
• Solid carbide construction supports repeated use across projects while maintaining sharp edge geometry.

Whiteside Machine Company brings more than 30 years of experience in tooling and problem-solving for woodworkers. The RD1600 is designed to be reliable in demanding shop environments, with compatibility for routers that have a 1/4-inch collet and a focus on consistent, controlled cuts rather than guaranteed outcomes.