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USB RECHARGEABLE GREEN CROSS LINE LASER
USB RECHARGEABLE GREEN CROSS LINE LASER
USB RECHARGEABLE GREEN CROSS LINE LASER
MILWAUKEE

REDLITHIUM USB Rechargeable Green Cross Line Laser Kit, 100 ft Range, +/-1/8 in Accuracy

Item #: 3521-21
MFR #: 3521-21

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Product Details


The Milwaukee REDLITHIUM USB Rechargeable Green Cross Line Laser (3521-21) is built for contractors who need all-day visibility and runtime without compromise. Powered by REDLITHIUM USB technology, the removable rechargeable battery delivers 8+ hours of runtime and can be charged directly inside the tool via Micro-USB, or swapped out for virtually zero downtime. High-intensity green laser beams project a visible cross line up to 100 ft, extending to 165 ft with a compatible detector, making it ideal for large-scale layout and leveling tasks. Integrated amplified rare earth magnets provide a secure, hands-free mount to metal surfaces, while the fast alignment micro control knob enables precise point-to-point positioning at extended distances.

  • 8+ Hour Runtime with removable REDLITHIUM USB rechargeable battery, supporting full-day use without interruption
  • High-Intensity Green Laser Beams visible up to 100 ft working range for fast, accurate leveling and alignment on the jobsite
  • 165 ft Range with Compatible Detector, expanding layout capability for large open areas and long runs
  • Accuracy of +/- 1/8 in. at 33 ft ensures precise alignment and leveling results
  • Fast Alignment Micro Control knob provides fine-tuned point-to-point positioning at long distances for faster setup
  • Amplified Rare Earth Magnets deliver strong, hands-free hold onto metal surfaces including steel studs and columns
  • Internally Charges via Micro-USB Port, no separate charger required, with swappable battery for zero downtime
  • Self-Leveling +/- 4 Degree Tilt with locking pendulum for operation in plumb, level, or manual mode
  • IP54 Dust and Water Resistance paired with 1m Impact Resistance for reliable performance in tough jobsite conditions
  • 1/4-20 Thread Mount for compatibility with standard tripods and mounting accessories

Item Specifications

  • 3 Ah
  • Rare Earth, Steel, Glass Filled Nylon, Rubber
  • 1 m
  • IP54
  • Class FDA IIA, II/IEC 2, 2M
  • 1/4-20
  • 2 (Horizontal and Vertical)
  • 14 to 104 degrees F
  • 165 ft
  • +/- 4 degrees
  • 2.2 lb
  • 5.20 lbs per EA