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6PCS Telescopic Gauge Set 8-150mm Micrometer Measurement Bore Engineers Kit
Features:
* Double action rigid handle with self centering feature for quick checking of holes, slots and recess up to 6" deep.
* The ends of both contact are head treated stainless steel and precision ground to a radius to allow proper clearance on the smallest hole the gage will enter.
* Constant spring tension gives uniform contact pressure.
* Handles are rigidly attached to the contact plungers and are automatically self-centering.
* Nickel-plated finished.
Usage:
Under uniform spring tension, the plunger of the gage expand from the center to the diameter of the hole or width of slot being measured and then locked in place by a knurled knob, the hole size is found by measuring over the two contact point with a micrometer or caliper.
Specification:
Material: Hardened tool steel
Color: Silver
Size: As pictures shown
Package Included: 6 pcs Precision Telescoping Gage 8-150mm + 1pc storage bag
We will re-check the quality before delivery. If any issues, questions or concerns,please feel free to email us at the first time, customer support team is standing by to assist you.