Keson Automatic Lock Tape Measure (25', Inch & Engineers) Nails Tacks & Twine The bottom plate is calibrated

The bottom plate is calibrated in millimeters and the top plate is transparent and marked with a hairline cursor in the form of a cross

you may do so by purchasing adapter number 15307

the prism can always be aligned precisely with the measuring instrument

simple reasonable care must be taken to prevent the assembly from becoming top­ heavy

Keson Automatic Lock Tape Measure (25', Inch & Engineers) Nails Tacks & Twine The bottom plate is calibratedThe Keson Automatic Lock Tape Measure delivers hands free convenience with precision you can count on. Its automatic blade lock holds the blade in place until you release it, making it easier to measure solo. Built tough with a chrome plated case, nylon coated steel blade, and 3 rivet hook, this tape is ready for any jobsite.