The Step Gauge 3D ruler is an original multi-function tool that measures in three dimensions. It is a groundbreaking tool that is capable of measuring space and pieces for fast and accurate placement.
3D ruler is uniquely set apart from most of other measuring devices currently out there now. It enables you to calibrate, measure and check your work by touch rather than eyesight. The 3D Ruler can help and craftsperson with precision. The 3D ruler is designed to work specifically as a gap gauge, the 3D ruler takes ALL the guesswork out of the last half inch! You can insert the small or large 3D ruler into gaps and spaces in the shop or on the job site and have your measurement instantly and accurately to 4 THOUSANDTHS of an inch.