Ideal for measuring of bore diameter and groove width.
The spring-loaded plunger expands within the hole.
Knurled locking screw allows plunger contacts to be held in position, removed and measured with a micrometer.
Satin chrome finish.
Supplied in PVC storage wallet with ranges marked.
5 /16 - 1 /2 Inch (8-13mm) Length: 115mm
1 /2 - 3 /4 Inch (13-19mm) Length: 115mm
3 /4 - 1.1 /4 Inch (19-31mm) Length: 115mm
1.1 /4 - 2.1 /8 Inch (31-54mm) Length: 145mm
2.1 /8 - 3.1 /2 Inch (54-89mm) Length: 145mm
3.1 /2 - 6 Inch (89-150mm) Length: 145mm
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