Morse taper

British

noun

engineering a taper that is one of a standard series used in the shank of tools to fit a matching taper in the mandrel of a machine tool

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Morse taper

probably named after the Morse Twist Drill Co, Massachusetts, US

Example Sentences

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The taper shanks of twist drills are given a standard degree of taper of 5⁄8 inch per foot of length, which is termed the Morse taper.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023