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      Free Delivery Over $100

    • Easy Returns

      30-Day Free Returns

    • Secure Payment

      100% Secure Checkout

    • Quality Guarantee

      2-Year Warranty Included

    SUNKKO Tool Collection

    Tough and precise — tools for every task.

    • Laser Welder

      High-precision laser welding with high welding speed and stability.

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    • Battery Equalizer

      Equalizing the battery packs of EV, E-bike, energy storage, etc.

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    • Analysis & Repair System

      Charge/discharge/balance/aging/internal resistance One-stop closed loop.

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    • Backfeed Energy Tester

      Charging and discharge to grid modes

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    Pro Tool Picks

    Our best SUNKKO tools—selected for you.

    Power Through Every Task

    Engineered for strength, precision, and durability — SUNKKO tools are built to handle even the toughest jobs.
    • 30+
      Years
    • 40+
      Patents Approved
    • 100+
      Countries Served
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    BUILT TO PERFORM
    POWER. PRECISION. SUNKKO.
    TOOLS THAT DON'T QUIT
    PRO-GRADE. DIY-READY.
    TORQUE. GRIT. SUNKKO.
    CONTROL IN YOUR HANDS

    Shop Our Bestsellers

    Top tools. Proven performance.

    • Why SUNKKO?

      Join thousands of pros who trust tools that go the distance.
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    • Built to Last

      Durability isn’t optional. It’s built into every KRANK tool.
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    Best Sellers Pro Favorites Top Rated

    SUNKKO’s Greatest Hits

    Legendary picks from our lineup — the ones pros swear by and weekend warriors keep coming back to.
    Fast Shipping Nationwide
    Free Returns Within 30 Days
    Track Your Order in Real Time
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    Get Inspired to Build

    Discover tools and stories that empower every project.
    • KRANK

      Master Every Detail

      Precision tools for craftsmen who demand more.
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    • Power Meets Precision

      Designed for those who turn ideas into reality—every project, every detail.
      Innovation Performance Professional

    • Engineered for Performance

      Built to tackle the toughest jobs with power, reliability, and precision.
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    • DIY Made Simple

      Empowering you to create, build, and improve—wherever inspiration strikes.
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    As Seen In

    Tough, clean, and brutally efficient — KRANK proves power tools never have to choose between strength and design. They deliver both with ease.

    The Power Lineup

    The 10+ essential tools every setup needs.

    What the Pros Say

    Real feedback from real users who rely on Krank to get the job done.
    • Krank tools feel solid and precise. Easy to handle, and powerful enough for all my workshop needs.
      Danielle M.
    • Every cut needs to be precise—and Krank tools give me that control. Smooth, solid, and always reliable.
      Marco G.
    • Cutting feels effortless with Krank. The grip, the control—it’s exactly what I need for clean, accurate work.
      Lena K.
    • Fast, clean, and consistent. Krank’s drill delivers pro-level precision without the bulk.
      Jason T.
    • Lightweight but powerful—perfect for home projects. Krank makes every task feel easier.
      Nina L.
    • Krank sanders give me total control—smooth finishes, zero hassle. It’s a must-have in my workshop.
      Elliot R.

    The KRANK Journal

    Dig into expert advice, product deep-dives, and behind-the-scenes stories from the KRANK crew.
    • Binshan

      How the current level and pulse setting work?

      展开内容
    • Binshan

      Welding Thickness of Sunkko Welders

      展开内容
    • Binshan

      Technical details of Sunkko BMS e.g. JFBMS134825

      展开内容
    • Two types of BMSs and each wiring diagram
      Binshan

      Two types of BMSs and each wiring diagram

      展开内容
    • Limited Warranty
      Binshan

      Limited Warranty

      展开内容

      KRANK in Action

      Real tools. Real builds. Straight from our community.