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Caliper is the American spelling, while calliper (double "L") is the British spelling. A single tool might be referred to as a caliper or as calipers – a plural only (plurale tantum) form, like scissors or glasses.

Get accurate diameter measurements every time when you use a caliper. Find digital calipers that display all the modes you need for a precise reading: inches, millimeters and fractions.

The rounded jaw hugs the inside of pipe and tubing, so you can accurately measure their wall thickness. Choose from our selection of Mitutoyo electronic calipers, economy electronic calipers, Mitutoyo dial …

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This caliper’s lightweight polymer construction allows you to get accurate SAE or metric readings even in wet conditions. Get accurate measurement down to the last millimeter or 16ths.