Smaller diameter pins can more accurately reproduce irregularly shaped contours The profile length that can be measured is 150mm, and the profile depth is 45mm.When measuring the depth, be careful not to let the pin fall out The pin is compact, not loose and not easy to fall off, while maintaining good mobility. Multifunctional design with metric and measurements, small size, easy to carry and use, resistance for Ideal for most kinds of carpentry, wood working and matching jobs This metal gauge is not lockable, so do not pull out the pins, otherwise all the pins will be scattered, Manufacturer: TENYELE