The Mafell DuoDoweler DDF 40 MaxiMAX 120 V Duo Dowel System Kit provides precise, repeatable double-dowel joining for cabinet making, frame construction, furniture assembly, and row-hole drilling. Powered by a 900 W (1.2 hp) motor operating on standard 120 V power, this portable duo-doweler drills two parallel 32 mm centered holes in a single plunge pass, delivering accurate joint alignment without requiring stationary machinery. This kit configuration pairs the DDF 40 MaxiMAX system with two additional 5 mm carbide dowel drill bits (090089) alongside the standard 6 mm and 8 mm bit sets, expanding out-of-the-box joint capability across 5 mm, 6 mm, and 8 mm wooden dowels.

Designed for high efficiency in both workshop and jobsite environments, the DDF 40 features a flat base plate and an integrated tilting fence mounted on dual columns. The tilting fence adjusts continuously from 0° to 90° with positive indexing stops at 22.5°, 45°, and 67.5° for accurate miter joining. A revolving turret stop allows rapid pre-setting of common height dimensions up to 62 mm (2-7/16 in.), while two spring-loaded pins in the base plate establish a fixed 15.5 mm (5/8 in.) edge distance for fast, layout-free repetitive drilling.

The MaxiMAX package includes advanced positioning stops, including the SA 320 side fence set for offset carcass joinery and edge alignment, plus the LA stop pin insert for narrow battens. Dust management is handled via an integrated 29 mm (1.14 in.) dust extractor port, maintaining line-of-sight clarity and reducing bit clogging during continuous drilling. All components store securely inside the included T-MAX Systainer carrying case for transport and jobsite protection.

Features & Benefits

• Dual-Hole Plunge Mechanism: Drills two parallel dowel holes simultaneously at standard 32 mm spacing to ensure twist-proof, rigid joint assembly.
• 900 W Universal Motor: Delivers 9,500 RPM no-load speed for clean, tear-out-free drilling in solid hardwoods, softwoods, and composite panels.
• 5 mm, 6 mm, and 8 mm Bit Inclusions: Comes equipped with two 5 mm, two 6 mm, and two 8 mm carbide dowel drill bits to handle common cabinet and carcass joint sizes immediately.
• Continuous Tilting Fence: Swivels from 0° to 90° with preset indexing stops at 22.5°, 45°, and 67.5° for bevel and miter joinery.
• Height Adjustment Turret: Rotary knob and scale enable precise height positioning up to 62 mm (2-7/16 in.) with quick turret detents for common panel thicknesses.
• Spring-Loaded Edge Pins: Integrated baseplate pins locate holes at a fixed 15.5 mm (5/8 in.) distance from workpiece edges without manual marking.
• SA 320 Side Fence Set: Allows accurate edge-distance positioning and offset carcass processing for face frame and cabinet construction.
• LA Stop Pin Insert for Battens: Enables accurate drilling on narrow wooden battens and slim stock using a single drill bit.
• Dust Extraction Port: 29 mm (1.14 in.) outer diameter connector attaches directly to shop vacuum hoses to maintain clean drill pockets and extend bit life.
• T-MAX Systainer Storage: Heavy-duty carrying case protects the tool, fences, bits, and accessories during transport and storage.

What's Included

• (1) DuoDoweler DDF 40 MaxiMAX Tool (120 V)
• (2) 5 mm Carbide Dowel Drill Bits (Ref. No. 090089)
• (2) 6 mm Carbide Dowel Drill Bits
• (2) 8 mm Carbide Dowel Drill Bits
• (1) SA 320 Side Fence Set (Ref. No. 206490)
• (1) LA Stop Pin Insert for Battens (Ref. No. 206491)
• (1) ZA Auxiliary Rest
• (1) ZAG Additional Stop Set
• (1) PAZ Position Indicator
• (1) Pack of 6 x 30 mm Wooden Dowels (350 Pieces)
• (1) Pack of 8 x 30 mm Wooden Dowels (200 Pieces)
• (2) Anti-Slip Mats (265 x 175 mm)
• (1) Empty Glue Bottle (8.4 fl oz / 250 ml)
• (1) 8 mm (5/16 in.) Dowel Nozzle
• (1) Hose Connector
• (1) Allen Key with Handle
• (1) 13.1 ft Mains Power Cable
• (1) T-MAX Carrying Case (Systainer)

Woodworkers needing extended template-guided hole spacing for long shelving runs or tall cabinet carcasses should consider ML918623+203980, which includes the 800 mm (2.6 ft) quick-clamping dowel template in addition to the DDF 40 MaxiMAX system and 5 mm drill bit set.

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.