ChrisNik 1736ARM 3 Feet Extension Arm for Pipe Mic II

    By ChrisNik | Mfr#: 1736ARM | Tiger#: TS24650


    • Connects to the ChrisNik Pipe-Mic II
    • For Feet/Tenths Graduation Grade Rods
    • Designed For Larger Manholes
    • Helps Measure Pipe Inverts & Diameters
    • 4-Inch Wheel Diameter
    • Water-Resistant
    More Product Details What's Included
    Availability:In Stock
    Ships Out Within: 24 - 48 Hours

    Overview for ChrisNik 1736ARM 3 Feet Extension Arm for Pipe Mic II

    The ChrisNik 3-Foot Extension Arm 1736ARM connects to the Pipe-Mic II and provides construction and surveying professionals with an additional 3 feet for measuring pipe inverts or pipe diameters. This extension arm is especially helpful for projects involving larger diameter manholes. It is used with grade rods that have graduations in feet, tenths, and hundredths of a foot.

    How It Works

    After removing the 2-foot arm, the 3-foot extension arm snaps into the shoulder bolt of the Pipe-Mic II. Next, place the 4-inch wheel of the arm on the invert of the pipe. Then, lift your leveling rod straight up by rotating the extension arm. Once the wheel reaches the top of the pipe, take your measurement, add 0.33, and that sum is the size of the pipe.