Extra long for gauging deep and shallow holes, slots and similar work. Used for comparison measurement of bore diameter and groove width. The spring-loaded plungers expand in the bore and the knurled knob is tightened to hold the contacts in position, removed and measured with a micrometer.
Supplied in vinyl wallet.
Range: 8-150mm, 5/16"-6"
For rapid checking of outside diameters.
Scales: 20-3 gauge, 1-13mm, 5/16-1/2" and 0.035-0.500"
They are named Taper Gauges because of their shape - they do not measure tapers!
For rapid measurement of inside diameters.
Scales: 1/8-1.1/4" and 3-30mm
A handy tool to keep by the lathe for a quick measurement when boring holes.
