Used with Flex receivers for highly accurate locating. In combination, these parts are designed to be mounted on fixture bases and plates for accurate locating and positioning and allow for precise repeatability when moving to a new machine or different operation. Precise +/- 0.01 mm repeatability when plates are mounted horizontally, or +/- 0.02 mm repeatability when plates are mounted vertically. Body and shank made from 4140 steel with a black oxide finish. Tapered pin made from 4140 steel with a nitrocarburized finish. Knob made from 300 stainless steel with a natural finish. Pin made from 304 stainless steel with a natural finish.