Milwaukee Tool 3704-21 Rotary Laser Level Kit

Product Description

The MILWAUKEE TOOL 3704-21 is an M18 Red Exterior Dual Slope Rotary Laser Level designed for professional layout work on construction and grading sites. This Class II red-beam rotary laser projects horizontal and vertical planes with an accuracy of 1/16 inch at 100 feet, making it reliable for demanding exterior applications. The unit runs on M18 lithium battery power and includes an upward plumb point for precise overhead reference. Licensed contractors, survey crews, and commercial construction trades are the primary users of this tool.

This rotary laser is suited for exterior grading, site layout, and structural plumb work on residential and commercial projects. The red beam is optimized for use with the included 3714 Red Exterior Dual Slope Rotary Laser Receiver, extending effective working range up to 4,000 feet in outdoor conditions. Dual slope capability supports drainage and grade-setting tasks where two-axis pitch control is required. The kit ships with all components needed to begin work immediately on the job site.

Key Features

• Class II red rotary laser beam with horizontal and vertical projection
• Accuracy of 1/16 inch at 100 feet for reliable layout reference
• Dual slope functionality supports two-axis grading and drainage layout
• Maximum measuring range of 4,000 feet when used with compatible receiver
• M18 lithium battery platform with included 3.0Ah XC battery and multi-voltage charger
• Screw-mount base for tripod or grade rod attachment
• Carrying case included for transport and storage

Compatibility

This kit includes the 3714 Red Exterior Dual Slope Rotary Laser Receiver, the 48-11-1828 M18 3.0Ah XC Battery, and the 48-59-1812 M18 and M12 Multi Voltage Charger. The laser is compatible with the M18 battery platform.

Installation Notes

Setup is typically performed by a licensed surveyor, layout tech, or experienced trade professional. Mount the laser on a stable tripod using the standard screw-mount base before powering on. Keep the unit away from vibration sources during operation to maintain beam accuracy. Always follow site safety protocols and relevant OSHA guidelines when operating laser equipment around other workers.