Fowler Surface Roughness Standards 54-830-830-0 white numerals and graduations are

white numerals and graduations are easy to read against the non-glare

• Each set furnished with case and every size gage hole clearly marked for size

• Zero reset at any position

Optical Edge Sensor and 16" Screen - 53-900-900-0

• Sharp image definition

Fowler Surface Roughness Standards 54-830-830-0 white numerals and graduations areSurface Roughness Standards Complete Scale Set Of 30 Specimens Features: Ideal for checking, identifying and specifying by symbol the degree of roughness of machine parts, covers every machine method known and every obtainable value Grade AA values are displayed in micro inch and micron values Quick, easy comparisons. Eliminates costly checking methods, saves time, reduces production of scrap caused by poor finishes 30 specimens, each 7 8" x 3 8" in