Mahr Federal 4487751 844AS Self-Centering Bore Gage Set .5-1"/12.5-25mm

The Mahr Federal 844AS Self-Centering bore gage Set, Model 4487761 is ideal for measuring through holes, blind holes and centering shoulders. The self-centering measuring head consists of 3 laterally positioned anvils, each are offset at intervals of 120 degrees. This set is supplied with a basic measuring instrument bore gage 844 Ag, 3 measuring heads 44 Ak, case and ring gages. This model has a measuring range of .5-1" / 12.5-25mm. INDICATOR NOT INCLUDED.