Freud 34-138 1-3/8" Quadra-Cut Radius Rounding Over Bit

The Freud 34-138 Radius Rounding Over Bit combines precision engineering with smart design to deliver a flawless edge treatment in a single pass. With a generous 1-3/8" radius, it creates smooth, rounded profiles ideal for moldings, doors, drawers, and a wide range of cabinetry details. Built around Freud’s renowned Quadra-Cut geometry, this bit is engineered to minimize tear-out and deliver a pristine surface even when cutting across grain.

What sets this bit apart is the Quadra-Cut design, which uses four cutting edges to stabilize chatter, improve finish quality, and extend tool life. The result is a consistently smooth edge across varying wood types and conditions, reducing the need for post-cut sanding and maximizing throughput in professional shops.

• Quadra-Cut performance for cross-grain work — cleaner cuts and a superior finish when working across grain directions.
• 1-3/8" radius for versatile profiles — creates substantial rounding on edges suitable for doors, drawer fronts, and decorative moldings.
• Beading option with a smaller bearing — attach a bearing that is 1/8" smaller in diameter to generate an elegant beading profile without swapping bits.
• Router-wide compatibility — suitable for CNC machines, hand-held routers, and table-mounted routers, enabling seamless workflow across setups.
• Material versatility — reliably tackles hardwoods, softwoods, plywood, and composites, making it a go-to choice for furniture, cabinetry, and millwork.

Ideal use cases

• Rounding over panel edges on cabinet doors and drawer fronts to soften sharp profiles and reduce snag hazards.
• Creating decorative moldings and fillets on picture frames, room dividers, and architectural trim.
• Finishing edge treatments on components destined for high-traffic environments where a durable, smooth edge is essential.
• Applying beaded profiles by using a smaller-diameter bearing to achieve subtle, classic ornamentation.

Why this bit is a smart choice for your shop

• Consistency you can trust — Quadra-Cut geometry maintains a clean, uniform cut across different grains and stock thicknesses.
• Reduced setup time — fewer passes and less sanding needed thanks to a crisp, ready-to-finish edge straight from the cut.
• Flexibility across machines — whether you’re CNC milling, hand routing, or using a table router, this bit delivers dependable performance.

Practical tips for best results

• Pair with a bearing that’s 1/8" smaller to explore beading profiles without changing tools.
• Feed steadily and maintain moderate speeds to preserve the Quadra-Cut edges and minimize heat buildup.
• Use sharp tooling and appropriate dust collection to maximize finish quality and tool life.
• Test on scrap stock to dial in feed rate and climb vs. conventional routing for your specific material and stock density.

Whether you’re building cabinet components, upgrading furniture, or adding durable millwork, the Freud 34-138 1-3/8" Quadra-Cut Radius Rounding Over Bit delivers a precise, repeatable edge treatment that stands up to everyday use. Its combination of advanced cutting geometry, versatile radius, and compatibility with multiple routing setups makes it a reliable workhorse for professional shops and serious hobbyists alike.