MultiVolt™ 36V 3-1/2" 21° Cordless Duplex Nailer | Metabo HPT NR3675DD

  • Model# NR3675DD

Highlights of the 3-1/2" Cordless Duplex Nailer

  • 2 nails per second (16D / 8D / 6D)
  • 900 nails per charge (w/ 36V 2.5Ah MultiVolt™ battery)
  • Ideal for concrete forms and scaffolding
  • Pneumatic-like feel
  • No gas, no hose, no compressor
  • Zero ramp-up time
  • Compatible with Duplex fasteners:
    • 50214-6D: 2-1/4” x .131
    • 50234-8D: 2-3/4” x .131
    • 50312-16D: 3-1/2” x .131
  • 2020 Pro Tool Innovation Award Winner for Duplex Framing Nailers
  • Lifetime Lithium Ion Tool Body Warranty
  • Get a FREE MultiVolt 36V Hammer Drill Kit (DV36DA) with purchase of the MultiVolt 36V Duplex Nailer for a limited time. View promotion details here.

MultiVolt Logo


A revolutionary cordless-corded power tool solution that meets the power output demands on a jobsite. The MultiVolt tools accepts a 36V battery OR plugs into an outlet with the AC Adapter.



MultiVolt Tools Recognized by Pro Tool Innovation Awards

MultiVolt AC Adapter


Corded power source option for the MultiVolt platform, offering all day power for your cordless power tools

36 Volt Battery


Experience 36V power in 2.5 or 4 Amp hour options featuring compact high output technology

The 36V MultiVolt™ 21° Cordless Duplex Nailer - NR3675DD - is here to revolutionize the concrete forming jobsite as it allows for a massive productivity boost vs. hand driving Duplex nails. Save money on the jobsite by saving valuable time! Move quickly while building concrete forms and scaffolding with the industry's first, battery only, cordless Duplex nailer solution.

Thanks to Metabo HPT's unique Air Spring Drive System that produces a similar feel to using a pneumatic nailer, combined with the power of the MultiVolt™ battery, this cordless Duplex nailer works all day long, driving up to 16D Duplex nails. Drive up to 900 16D 3-1/2" Duplex nails per charge with the included 2.5Ah MultiVolt battery. For bigger jobs, power up with a 4.0Ah MultiVolt battery and drive up to 1,200 Duplex nails on a single charge!

Features of the NR3675DD MultiVolt™ 21° Cordless Duplex Nailer:

  • 2020 Pro Tool Innovation Award Winner for Duplex Framing Nailers
  • Get a FREE MultiVolt 36V Hammer Drill Kit (DV36DA) with purchase of the MultiVolt 36V Duplex Nailer for a limited time. View promotion details here.
  • Click here to view the Duplex Nailer video
  • Duplex Fasteners (16D / 8D / 6D) provide excellent grip force with easy & quick removal for temporary wood structures
  • Air Spring Drive System delivers similar feel to a pneumatic nailer
  • Ideal for building temporary wood structures like concrete forms and scaffolding
  • Drive up to 900 nails per charge with the included 2.5Ah MultiVolt battery - model 371751M
  • Simplified control panel is easy to read and select between single fire or bump fire modes
  • Zero ramp-up time
  • Dry-fire Lockout System prevents nailer from driving when fasteners are low
  • Brushless Motor Technology for more run-time, increased power, and extended durability with essentially no maintenance
  • Tool-less depth of drive adjustment for precise fastener setting
  • Selective actuation allows the user to choose between bump and sequential modes
  • Side lock switch to prevent accidental firing
  • Pivoting belt hook
  • Also accepts MultiVolt AC Adapter with cord - model ET36A (sold separately) for the option to plug in for ultimate versatility
  • Also accepts MultiVolt 36V 4.0Ah battery - model 372121M (sold separately) for up to 1,200 nails on a single charge 
  • Covered by Metabo HPT's Lifetime Lithium Ion Tool Body Warranty
  • Download the NR3675DD Tool Card

Duplex Fasteners from Metabo HPT:


Included with the Duplex Nailer:
  • 36V MultiVolt™ 2.5Ah battery (371751M / BSL36A18)
  • 36V/18V Charger (UC18YFSL)
  • Carrying Bag (372294M)
  • 3mm Hex Wrench (943277)
  • 4mm Hex Wrench (944458)
  • Safety Glasses (875769)