The Freud 3/16 in. (Dia.) Through Hole Bit is an industrial-grade carbide tipped boring bit engineered for precision drilling in multi-spindle boring machines. Featuring a 10mm shank with an adjustable top screw, this bit integrates seamlessly with most automatic and manual boring machines, making it a reliable tool for woodworking shops and cabinet manufacturers who need repeatable, accurate through hole results across a wide range of materials.

Key Features

• Industrial carbide tips - deliver long-lasting cutting performance and maintain sharpness through high-volume production runs on hardwoods, softwoods, composites, and solid surface materials
• 60 deg. point angle - provides precise hole location when drilling through holes, reducing positioning errors and improving consistency across multi-spindle setups
• 10mm shank with adjustable top screw - ensures compatibility with most boring machines so you can swap bits quickly without specialized tooling
• Left Hand (LH) rotation - designed specifically for machines that require counter-clockwise cutting, ensuring clean entry and exit holes in veneered plywood and delicate composites
• 70mm overall length with a 35mm maximum hole depth - gives adequate reach for standard cabinet and furniture boring applications without excessive bit flex
• Freud Limited Lifetime Guarantee - provides long-term assurance of quality and performance, protecting your investment in professional tooling

Why This Product

• Purpose-built for multi-spindle boring machines - if your shop runs automatic or manual multi-spindle equipment, this bit is engineered to meet that specific demand rather than being a general-purpose drill bit adapted for the task
• Carbide-tipped construction means the bit handles a broad material range - from soft pine to hardwoods, veneered plywood to solid surface and composites - without requiring a dedicated bit for each material type
• The 60 deg. point geometry focuses the cutting action at the tip, reducing wandering on entry and making it easier to hit precise bore locations on cabinet panels and furniture components
• Left Hand rotation availability ensures you can equip LH spindle positions on multi-spindle heads correctly, avoiding tear-out and maintaining surface quality on the exit side of through holes

Specifications

• Brand: Freud
• MPN: TH47670L
• Category: Through Hole Bits
• Diameter: 3/16 in.
• Length: 70mm
• Shank: 10mm
• Angle: 60 deg.
• Maximum Hole Depth: 35mm
• Rotation: LH
• 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 on automatic and manual multi-spindle boring machines.

Frequently Asked Questions

What type of rotation does the TH47670L use, and why does it matter?

This bit uses Left Hand (LH) rotation, meaning it cuts in a counter-clockwise direction. This is important when equipping LH spindle positions on multi-spindle boring heads. Using the correct rotation direction ensures clean, tear-out-free holes, particularly on veneered plywood and composite panels where surface quality matters.

Is this bit compatible with my boring machine?

The TH47670L features a 10mm shank with an adjustable top screw, which makes it compatible with most boring machines used in woodworking and cabinet production. It is also suitable for use with a drill press or hand held drill.

What is the maximum hole depth this bit can achieve?

This through hole boring bit has a maximum hole depth of 35mm. The overall bit length is 70mm, and the 3/16 in. diameter with 60 deg. point angle is optimized for accurate through hole location rather than deep pocket drilling.

What materials can this boring bit drill through?

The industrial carbide tips allow this bit to drill composites, solid surface materials, veneered plywood, hardwoods, and softwoods. It is designed for use on automatic and manual multi-spindle boring machines handling a wide variety of wood-based and engineered materials.