The rule of thumb is the bigger the area to measure, the bigger the wheel. The 19" diameter, MK6012 is the big wheel for you. This wheel is made to be used in the roughest terrain and measure larger areas. The 60 series wheels are also covered with a composite tread to allow versatility in measuring on smooth surfaces. Whether you are surveying a property or putting up a fence, the MK6012 is your wheel.
Gear Driven Counter with Push Button Reset and Spring Loaded Kickstand