The Mafell Arunda 120N Midi Dovetail Joint Milling Template System provides structural timber framers and carpenters with a precision jig system for producing high-strength wood-to-wood dovetail connections. Designed for timber widths from 120 mm to 200 mm (4-3/4 in. to 7-7/8 in.) and timber heights from 90 mm to 300 mm (3-1/2 in. to 11-13/16 in.), this system replaces traditional steel connectors with self-tightening, drop-in timber joints engineered for heavy structural loads.

Operating with a compatible heavy-duty router such as the Mafell LO 65 Ec, the Arunda system utilizes a male and female template pair to rout matching mortise and tenon profiles directly into structural beams. The self-locking geometry allows upper joists and rafters to slide smoothly into place from above, drawing the connection tightly together without requiring external hardware or temporary bracing. Identical stop measurements on both templates ensure consistent reference alignment across multiple cuts, significantly reducing layout time on large timber framing projects.

The Midi package configuration equips woodworkers with the complete essential tooling setup needed to begin cutting 120N dovetail joints immediately, including matching templates, cutter head, reversible carbide blades, positioning gauge, guide ring, and a wooden transport case.

Features & Benefits

• Precision-Engineered Dovetail System: Creates high-capacity wood-to-wood structural joints without requiring metal fasteners or exposed connectors.
• Self-Tightening Joint Geometry: Downward wedge action pulls mating timbers tight upon installation for superior joint stiffness and clean visual fit.
• Identical Reference Positioning: Mortise and tenon templates feature matched stop locations, eliminating manual calculations and reducing alignment setup time.
• Angled Milling Versatility: Supports straight and angled timber connections up to 50 degrees for flexible roof rafter and diagonal bracing designs.
• Reversible Knife Cutter Head: Included router cutter head uses replaceable carbide blades to deliver clean cuts and maintain precise joint tolerances.
• Wooden Storage Case: Protects templates and precision accessories during jobsite transport and keeps components organized.

What's Included

• (1) Tenon Milling Template
• (1) Mortise Milling Template
• (1) Cutter Head
• (1) Guide Ring
• (1) Positioning Gauge
• (2) Pairs of Reversible Carbide Blades
• (1) Wooden Transport Case

When selecting an Arunda system, choose the 120N for large structural timber applications spanning 120 mm to 200 mm (4-3/4 in. to 7-7/8 in.) in width with a 37 mm joint depth. For medium timber widths of 80 mm to 140 mm, select the Arunda 80N; for narrow timbers of 45 mm to 80 mm, select the 50N; or choose the Arunda 60-1B for applications requiring a shallower 21 mm joint depth.

Shipping: Beaver Industrial Supply offers free shipping on orders over $199, with the exception of Sawstop and Laguna, which require additional fees to be collected. Other exceptions apply as noted on product pages.

We reserve the right to determine the fastest and most cost-effective manner of transportation for all orders that qualify for free shipping. Our shipping carriers cannot deliver to PO box or U.S. military post office box addresses, such as APO and FPO, so we require a physical street address for delivery. We use USPS, which typically takes 2-8 days for delivery, depending on your location, for smaller items and UPS Ground for all other ground shipments under 150 pounds.

• Returns: We accept returns and exchanges for a fee up to 30 days in unopened, new, and unused condition in the original packaging. Exceptions apply.

Please note, NO REFUNDS will be given on any new, used, or damaged item if it is not returned in the original packaging, no matter what condition the packaging is in. If the item qualifies for free shipping, you will be charged the original shipping cost and are responsible for shipping the product back with the shipping carrier of your choice.

We must receive the item undamaged. We recommend you package it accordingly and purchase insurance for higher-priced items to ensure you receive the full refund minus any incurred fees as applicable. We reserve the right to refuse the return of accessories.

Because items are your responsibility until they reach us, we recommend that you send the parcel using a delivery service that insures you of the value of the goods. Return shipping is at the customer's cost. At Beaver Industrial Supply’s discretion, delivery charges can be refunded if the goods are defective.

Returns require a return authorization number. Please call customer service at 314-773-5999 or submit a customer service inquiry to start the exchange or return process and receive an authorization number.

Machinery too large for parcel shipment (palletized or crated) is only returnable if there is a material defect that cannot be resolved by replacing components.