The Freud 38 mm Cylinder (Hinge) Bit is a precision-engineered boring bit built for woodworking professionals who demand clean, accurate holes in a wide range of materials. Featuring industrial carbide tips and a 10 mm shank with an adjustable top screw, this hinge boring bit is compatible with most multi-spindle boring machines, making it a reliable choice for cabinet production, furniture manufacturing, and millwork applications. Two wing cutters and two spur cutters work together to prevent bottom-side tear out, ensuring smooth, professional results in composites, solid surface materials, veneered plywood, hardwoods, and softwoods.

Key Features

• Industrial carbide tips - deliver superior cutting performance and extended tool life compared to standard high-speed steel, reducing the frequency of bit replacement on demanding production runs.
• Two wing cutters and two spur cutters - work in combination to prevent bottom-side tear out, producing clean exit holes in veneered plywood and finished panel materials where surface quality matters.
• 10 mm shank with adjustable top screw - ensures compatibility with most multi-spindle boring machines, allowing quick setup and secure seating without adapters.
• Right hand rotation - matches standard boring machine spindle direction, so the bit runs true with no special configuration required.
• 38 mm diameter, 57.5 mm length - purpose-sized for hinge cup boring, fitting the most commonly specified European-style hinge cup dimensions.
• Wood case included - protects the carbide cutting edges during storage and transport, keeping tips sharp and ready for the next job.
• Freud Limited Lifetime Guarantee - provides long-term confidence in the investment, reflecting the manufacturer's commitment to tool quality and durability.

Why This Product

• Designed specifically for accurate hinge cup boring, this carbide-tipped cylinder bit handles composites, solid surface panels, hardwoods, softwoods, and veneered plywood in a single tool - reducing the need for multiple specialized bits on mixed-material production lines.
• The adjustable top screw on the 10 mm shank makes this bit compatible with most automatic and manual multi-spindle boring machines, minimizing downtime during tool changes and setup adjustments.
• Industrial carbide tips are engineered for superior performance and maximum life, making this boring bit a cost-effective choice for high-volume cabinet and furniture shops where edge retention directly impacts output quality.
• Backed by Freud's Limited Lifetime Guarantee, this hinge bit represents a long-term addition to a professional boring toolkit - not a consumable that requires frequent replacement.

Specifications

• Brand: Freud
• Manufacturer Part Number: CB38057R
• Category: Cylinder Bits
• Diameter: 38 mm
• Length: 57.5 mm
• Shank: 10 mm
• Rotation: RH
• Compatible Tools: Drill Press; Hand Held Drill
• Compatible Materials: Composites; Solid Surface; Veneered Plywood; Hardwoods; Softwoods
• Pack Quantity: 1
• Country of Origin: Italy

Approved Applications

• Drills all composition materials, solid surface materials, plywoods, hardwoods, and softwoods. Use on automatic and manual multi-spindle boring machines.
• Hinge cup boring for European-style cabinet hinges in furniture manufacturing and cabinet production.
• Precision boring in woodworking applications where clean entry and exit holes are required in finished or veneered panel surfaces.

What's Included

• 1x Freud 38 mm Cylinder (Hinge) Boring Bit (CB38057R)
• Wood storage case for bit protection

Frequently Asked Questions

What shank size does the CB38057R use, and will it fit my boring machine?

The CB38057R uses a 10 mm shank with an adjustable top screw, which makes it compatible with most automatic and manual multi-spindle boring machines. The adjustable top screw allows for secure and precise seating in a wide range of machine spindle configurations.

What materials can this 38 mm cylinder bit bore through?

This boring bit is designed to drill composites, solid surface materials, veneered plywood, hardwoods, and softwoods. The industrial carbide tips handle both natural wood and engineered panel products with consistent performance.

How does this bit prevent tear out on the bottom side of the workpiece?

The bit features two wing cutters and two spur cutters that work together during boring. The spur cutters score the material at the perimeter of the hole before the wing cutters remove the core, which prevents bottom-side tear out - particularly important when boring through veneered plywood or other finished panel surfaces.

What guarantee comes with the Freud CB38057R boring bit?

This boring bit is covered by Freud's Limited Lifetime Guarantee, reflecting the manufacturer's confidence in the industrial carbide tips and overall construction for long-term, professional use.