SitePro Professional Series 1M Measuring Wheel - 31-PS401M Schonstedt Instrument Co The JackJaw 502 is made

The JackJaw 502 is made from heavy-gauge steel plate and tubing

Telescope: 32× magnification with a clear objective aperture of 45 mm

such as dozers

Model Number: 6403-01-050

Q5: Is calibration required

SitePro Professional Series 1M Measuring Wheel - 31-PS401M Schonstedt Instrument Co The JackJaw 502 is madeSitePro Professional Series 1M Measuring Wheel Model Number: 31 PS401M Features: All steel construction with accuracy 1 cm measuring and belt driven counter. Professionals can count on the durable design and accurate, reliable measuring with a 32 centimeter (1 meter circumference) steel spoked wheel that provides best performance on rough terrain for heavy construction, large commercial operations, utilities, land surveying and other measuring