Clear Semi Circle Protractors Staff Gauges with a simple in-hand tool

with a simple in-hand tool

They are economical

convenient

In the medical field

Clear coated for extended life

Clear Semi Circle Protractors Staff Gauges with a simple in-hand toolORC Forensics has taken the old protractors you used in Geometry class and tweaked their designs, turning them into proud pieces of equipment for any crime scene investigator. This is a useful feature so you may overlay the tool on things you are getting an angle measure of, without visual obstruction. Of the many uses these protractors have, the focus of their designs are intended for measuring blood spatter and ballistic trajectory. In the medical