Use Fowler No. 52-246 Blade Micrometers to measure the outside diameter of workpieces which have narrow grooves, "T" slots and aother dimensions blocked by shoulders or lands where standard type micrometers cannot be applied.
Special Features:
Use for measuring the outside diameters of workpieces with narrow grooves, T-slots & other dimensions blocked by shoulders or lands inaccessable by standard micrometers.
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