Router Mortise & Slot Jig Twin Aluminum Rails

✔ Stable, parallel cuts: Twin anodized aluminum rails clamp against both sides of the workpiece to keep the router tracking parallel from start to finish. The firm grip helps prevent drifting, skating, and flexing, including when routing hardwood.

✔ Adjustable slot positioning: Four hand-tightened thumbscrews let you set the bit’s distance from the edge for centered mortises, off-center grooves, or concealed-fastener slots. Adjust positioning without shims or extra calculations.

✔ Clear view and broad router fit: The transparent acrylic base keeps pencil lines, the bit, and stop marks visible while routing. It fits compact routers with barrel diameters from 2.50 in to 2.56 in, installs without drilling or modifications, and includes an 0.43 in straight bit.

Router barrel diameter compatibility: 2.50–2.56 in

Base dimensions: 6.50 × 4.09 × 1.42 in

Construction materials: Anodized aluminum rails, clear acrylic collar, steel thumbscrews

Included straight bit: 0.25 in shank; 0.43 in cutting diameter; 1.18 in cutting length; 2.36 in overall length