The Starrett 270 Taper Gage 51292 has a measuring Range of .010 to .150" in thousandths of an inch with the reverse side having a measuring Range of 0.3mm to 4mm in one twentieth of a mm (0.05mm). This is a very useful tool, especially for bearing work and for gaging slots. It is made of quality tool steel and accurately tapered throughout the entire length for quick and convenient measuring. The gage is 7/16" /11mm wide by 6-1/4" /160mm long. It can also be used as a precision shim.
Bore and Hole Gages > Hole and Slot Gages, GPC: Hardware > Tools > Measuring Tools & Sensors > Gauges, Label2: Bore and Hole Gages