Milwaukee M18™ Red Exterior Rotary Laser Level Kit (3701-21)

The Toughest Laser on the Lot: 2-Meter Impact Protection and Professional-Grade 2,000ft Range.

Stop worrying about your most expensive layout tool. The Milwaukee M18™ Red Exterior Rotary Laser is built to withstand the rigors of the modern jobsite. Featuring a reinforced housing that is drop-rated to 2 meters (6.6 ft), this laser survives the accidental tripod tips and bumps that would sideline other units. Designed for fast, one-person setup, the 3701-21 delivers the accuracy and range required for large-scale commercial grading, foundations, and site prep.

Powered by the M18™ battery platform, this kit offers unmatched runtime—delivering over 70 hours of continuous operation on a single M18™ 2.0Ah battery.

Key Features & Professional Benefits:

• 2-Meter Drop Rating: Built with a protected cage and internal damping to survive a 6.6ft drop or a tripod tip-over onto concrete.

• 2,000ft Working Range: High-intensity red beam and the included RD600 Receiver allow you to cover massive jobsites from a single setup point.

• Precision Accuracy: Delivers 1/16” accuracy at 100ft, ensuring your footings, slabs, and drainage slopes meet strict engineering tolerances.

• RD600 Digital Receiver: Features a large, easy-to-read digital display (inches, mm, and fractions) with a center-find function for fast grade checks.

• One-Button Setup: Simplified interface allows the tool to self-level instantly, getting you to work faster with zero complex menu diving.

• Manual Slope Capability: Allows for easy grade matching for driveways, ramps, and drainage projects.

• All-Weather Reliability: IP66 rated to be dust-tight and protected against heavy rain, ensuring you can keep working even when the weather turns.

Product Specifications:

Accuracy You Can Trust, Speed You Can Use

The 3701-21 isn't just a laser; it's a productivity powerhouse. The included RD600 Digital Receiver features high-interference rejection, meaning it won't be fooled by strobe lights or other lasers on the site. With the M18™ battery's legendary runtime, you can leave the laser running all day without the fear of it dying mid-pour. For the contractor who demands "no-excuses" performance, the Milwaukee Rotary Laser is the new industry standard.

Protect your precision. Upgrade to the Milwaukee 3701-21 and experience the peace of mind that comes with the world's most durable rotary laser.