45° Lock Miter Router Bit

Overview

Cut strong, self-aligning 45-degree miter joints in a single pass with this lock miter router bit. The interlocking profile increases glue surface area and keeps panels aligned during assembly, making it a favorite for box corners, cabinet joints, and picture frames.

Key Features

• Cuts a self-aligning, interlocking 45-degree joint that's stronger than a plain miter
• Increased glue surface compared to a standard miter cut, for a more durable joint
• Carbide cutting edges hold up through repeated passes in hardwood and plywood
• Available in multiple shank sizes (6mm, 6.35mm, 8mm, 12mm, 12.7mm) to match your router
• Works on router tables and CNC setups for repeatable results

Specifications

• Joint angle: 45°
• Cutting material: carbide-tipped
• Shank sizes: 6mm, 6.35mm, 8mm, 12mm, 12.7mm
• Multiple cutting diameter/length combinations available

Who It's For

Ideal for cabinetmakers and box or case builders who want strong, self-aligning corner joints without hand-fitting a miter.