Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit, 5AH

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Home » Shop » Milwaukee » Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit, 5AH
Adams SKU: MILW-284421
Manufacturer Part#: Milwaukee 2844-21 Categories: , , ,

M18 FUEL 3″ Duplex Nailer Kit

The Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit transforms concrete formwork assembly with increased productivity and ergonomic design. Utilizing nitrogen air spring technology, a POWERSTATE™ Brushless motor, and REDLINK™ Intelligence, this nailer seats nails into all wooden formwork materials at rates of up to 4 nails per second. With a 7X productivity boost and significant reduction in muscle effort compared to manual hammering, this tool is engineered for efficiency. Key features include tool-free jam clearance, depth adjustment, and compatibility with Milwaukee® Collated Duplex Nails. The M18 FUEL™ Duplex Nailer can fire up to 800 nails per charge with the M18™ REDLITHIUM™ 5.0AH Battery pack, ensuring long-lasting performance. It is part of the extensive M18™ System, compatible with all M18™ REDLITHIUM™ batteries.

Milwaukee 3″ Duplex Nailer Kit At a Glance

  • FASTER CONCRETE FORMING: POWERSTATE™ brushless motor and nitrogen spring mechanism drastically improve productivity compared to hammering.
  • SAFER, LESS FATIGUE: Reduces upper arm muscle effort by 45-76% and forearm muscle effort by 44-68% compared to hammering.
  • 800 NAILS PER CHARGE: Fires up to 4 nails per second.
  • Tool-Free Jam Clearing Latch: Quickly clear jams without tools.
  • Tool-Free Depth Adjustment: Easily adjust nail depth without tools.
  • Fires 4 Nails Per Second: Rapid firing for increased productivity.
  • Belt & Rafter Hook: Convenient storage while working.
  • Flattop Design: Allows the tool to rest in an inverted orientation.
  • Nail Placement Indicator: Ensures precise nail placement.
  • LED Work Light: Illuminates the work area for better visibility.
  • Dry Fire Lockout: Prevents firing when the magazine is empty.
  • Part of the M18™ System: Compatible with over 200 solutions.
  • REDLITHIUM Battery Technology: Delivers more work per charge and longer pack life.
  • Ergonomic Handle: Designed for use with thick work gloves


  • Construction: Ideal for rapid nailing in concrete formwork, increasing job site productivity.
  • Woodworking: Ensures precise nailing in various wooden structures, enhancing efficiency.
  • Municipal Projects: Suitable for city infrastructure projects requiring reliable and fast nailing.
  • Educational Institutions: Perfect for trade schools teaching modern nailing techniques.
  • Outdoor Projects: Robust performance in outdoor environments for decking and framing.
  • Industrial Applications: Efficient nailing in large-scale industrial projects.
  • Residential Projects: Simplifies nailing tasks in home construction and renovation.

This nailer is ideal for professionals in construction, woodworking, and other trades that require fast, efficient nailing. The reduction in muscle effort enhances worker safety and reduces fatigue, making it suitable for extended use. The tool-free features minimize downtime, keeping projects on schedule and enhancing productivity.

Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit Features

    • M18 FUEL™ Duplex Nailer Kit
    • Only compatible with Milwaukee Collated Duplex Nails (MDP8D-2000, MDP16D-2000)
    • FASTER CONCRETE FORMING: POWERSTATE™ brushless motor in unison with nitrogen spring mechanism drastically improves productivity compared to hammering
    • SAFER, LESS FATIGUE 45-76% muscle effort reduction in the upper arm compared to hammering & 44-68% muscle effort reduction in the forearm compared to hammering
    • 800 NAILS PER CHARGE: Fires up to 4 nails per second
    • Tool Free Jam Clearing Latch
    • Tool Free Depth Adjustment
    • Fires 4 Nails Per Second
    • Belt & Rafter Hook
    • Flattop Design to rest tool in inverted orientation
    • Nail Placement Indicator
    • LED Work Light
    • Dry Fire Lockout
    • Part of the M18™ system, featuring over 200+ solutions
    • REDLITHIUM battery technology: superior pack construction, electronics and performance deliver more work per charge and more work over pack life than any battery on the market
    • POWERSTATE Brushless Motor delivers longer life and higher performance
    • Ergonomic Handle for use with thick work gloves

Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit Includes

  • (1) M18 FUEL™ Duplex Nailer (2844-20)
  • (1) M18™ REDLITHIUM™ XC5.0 Extended Capacity Battery Pack (48-11-1850)
  • (1) M18™ & M12™ Multi-Voltage Charger (48-59-1812)
  • (1) Contractor Bag

Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit Specifications

  • GTIN: 00045242775729
  • MFG Part # (OEM): 2844-21
  • Battery System: M18
  • Voltage: 18V
  • Battery Voltage (V): 18
  • Battery Type: 18 Volt Lithium Ion
  • Number of Batteries Required: 1
  • Number of Batteries Included: 1
  • Nailer Type: Framing
  • Power Source: Cordless
  • Motor Type: POWERSTATE Brushless
  • Length: 15.1 in
  • Weight: 9.3 lbs
  • Height: 12.5 in
  • Width: 5.3 in
  • Brushless: Yes
  • Powered Tool Power Source: Electric – Cordless
  • Nailer / Stapler Design: Nailer
  • Adjustable Depth Setting: Yes (Tools Not Required)
  • Maximum Fastener Length (in): 3.625
  • Fastener Gauge Range: 0.131″
  • Magazine Angle (°): 21
  • Magazine Capacity: 31
  • Nails per Battery Charge: 800
  • Integrated Rafter Hook: Yes
  • Integrated Work Light: Yes
  • Housing Material: High Performance Polyethylene
  • Color / Finish: Black, Red
  • Net Tool Weight (lbs): 9.5
  • Weight – Excluding Battery (lbs): 9.5
  • Case Included: Yes
  • Additional Contents: Battery, Charger, Contractor Bag
  • Manufacturer Warranty: 3 Year (Tool), 3 Year (Battery)
  • ANSI Safety Listing: No
  • CSA Certified: No
  • ETL Listed: No
  • UL Listed: Yes
  • Tool Warranty: 3 Year Limited Warranty

Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit Warranty

  • Milwaukee’s 3 Year (Tool), 3 Year (Battery) Limited Warranty

Why Customers Use The Milwaukee 18V 3″ Duplex Nailer

Customers choose the Milwaukee 2844-21 M18 FUEL 3″ Duplex Nailer Kit for its unmatched efficiency and ergonomic design. The ability to fire up to 4 nails per second significantly speeds up projects, while the reduced muscle effort enhances comfort during extended use. Its compatibility with the extensive M18™ System adds versatility, making it a reliable tool for various applications. From construction sites to woodworking shops, this cordless nailer ensures optimal performance and convenience, helping professionals achieve high-quality results with ease.

Additional information

Weight 17.2 lbs
Dimensions 14.49 × 19.61 × 9.57 in


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