Measure bore sizes by transferring the internal dimension to a micrometer. Gauges are locked by twisting the knurled end of the handles.

Insert at an angle to the bore & slowly brought to align themselves radially. The gauge is then removed and measured with the aid of a micrometer.

Set Contains (Available Separately):

Item No. Description Size
MT170-A Telescopic Gauge 8mm to 12.7mm (5/16" to 1/2")
MT170-B Telescopic Gauge 12.7mm to 19mm (1/2" to 3/4")
MT170-C Telescopic Gauge 19mm to 32mm (3/4" to 1.1/4")
MT170-D Telescopic Gauge 32mm to 54mm (1.1/4" to 2.1/8")
MT170-E Telescopic Gauge 54mm to 90mm (2.1/8" to 3.1/2")
MT170-F Telescopic Gauge 90mm to 150mm (3.1/2" to 6")