Invisible Fastener Slotting Jig for Trim Routers

Overview

Create strong, completely hidden fastener joints in doors, panels, and cabinet components with this precision slotting jig. Designed for use with compact trim routers (body diameter up to 65mm), it guides the router along a fixed track to cut clean, accurately positioned slots for concealed fasteners - the kind of joint cabinetmakers rely on when a visible screw or hinge simply isn't an option.

Key Features

• Precisely controls both the width and depth of the slot in a single pass
• Height-adjustable base fits panels of varying thickness
• Smooth-gliding precision rails for consistent, wobble-free cuts
• Spring-loaded return action - push forward to cut, and the head returns automatically when you release
• Independent left/right and front/rear limit screws let you dial in the exact slot position before you start
• Brass limit nuts control cutting depth and lateral travel with fine adjustment

Specifications

• Max slot length: 55 mm
• Compatible panel thickness: 10-80 mm
• Slot depth/width: fully adjustable, works with most standard cutter heads and 2-insert trim routers
• Router compatibility: trim routers with a body diameter up to 65 mm
• Material: wood-compatible metal construction

Who It's For

Built for cabinetmakers, furniture builders, and serious woodworking hobbyists who need repeatable, invisible fastening on cabinet doors, side panels, and boxes - without visible screw heads or fittings.