Meet the Freud TH12770L 14 mm Through Hole Bit—a precise, purpose-built solution for dedicated woodworking applications. Crafted for multi-spindle boring machines, this bit delivers clean, accurately located through holes with repeatable results you can trust on every project. Featuring a 14 mm cutting diameter and a versatile 10 mm shank, it’s designed to slot into a wide range of boring setups with ease. The adjustable top screw helps secure and align the bit for stable starts, making long bores and tight tolerances more achievable in busy shop environments. The 60° point geometry ensures the hole starts exactly where you intend, minimizing wander and delivering consistently true locations for hardware, dowels, or pass-through features.

Key Features

• 14 mm cutting diameter delivers precise through holes for hardware, dowels, or architectural joinery.
• 10 mm shank compatible with a broad range of boring machines and spindle configurations.
• Adjustable top screw enhances seating and alignment, helping to secure the bit in place during boring operations.
• 60° point geometry creates an accurate starting point, reducing drift and improving hole accuracy on through holes.
• Designed for multi-spindle machines, optimizing productivity in cabinetry, furniture, and shop setups.

Why this bit stands out

Unlike generic drill bits, the TH12770L is purpose-built for through-hole work in woodworking environments with multi-spindle equipment. The dedicated 14 mm diameter paired with a precise 60° point minimizes wandering at start, so your holes line up perfectly with hinge plates, hardware fittings, or passthrough components. The adjustable top screw adds a practical edge, allowing you to secure and register the bit quickly, which is especially valuable when drilling longer holes or repeating the same bore pattern across multiple panels.

Ideal use cases

• Cabinetry and furniture assembly requiring exact through holes for hinges, rails, or connectors.
• Long-bore patterns on panels where repeatability and alignment are critical.
• Projects that involve dowel insertion or hardware installation where a clean, true bore is essential.
• Shop setups with multiple spindles where standardized tooling reduces setup time and variation.

Compatibility and care

The TH12770L is designed to work with most boring machines that accept a 10 mm shank. For best results, ensure the top screw is properly seated before starting, and verify that the workpiece is securely clamped to prevent movement during drilling. Regularly inspect the bit for wear and maintain clean cutting surfaces to preserve precision over time. When switching tasks, return to a consistent setup so hole locations remain uniform across panels and assemblies.

Practical tips for optimal results

• Mark the starting point clearly on each workpiece to leverage the 60° starting geometry.
• Use a sacrificial backing board to minimize tear-out on the exit side of through holes.
• Rotate workpieces between passes to distribute wear evenly and extend bit life.
• Consult your boring machine’s depth stop settings to ensure consistent bore depth across multiple panels.