At Moore & Wright we manufacturer the folowing types of Rules & Tapes:
Graduated Rules manufactured out of spring steel.
Graduated Steel Straight Edge. Manufactured to DIN 866/1 the gauging surfaces have been precision ground. The clear and easy to read metric graduations start 5mm in from the ends.
Circumference Tapes, which can measure both circumference and external diameters on the vernier cover plate. Manufactured to DIN 866/2 and read to 0.1mm.