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Morse Taper (MT) Dimensions Chart

April 12th, 2012

posted by AutoDrill

MorseTaperDimensionsChart.pdf
(For the PDF file, K = B – L)

Taper#	A	D	L	B	K
0	0.3561	0.2520	0.5625	2.3438	1.7813
1	0.4750	0.3690	0.7500	2.5625	1.8125
2	0.7000	0.5720	0.8750	3.1250	2.2500
3	0.9380	0.7780	1.1875	3.8750	2.6875
4	1.2310	1.0200	1.2500	4.8750	3.6250
5	1.7480	1.4750	1.5000	6.1250	4.6250
6	2.4940	2.1160	1.7500	8.5625	6.8125
7	3.2700	2.7500	2.6250	11.6250	9.0000

NOTE: At times, the female Morse Taper cavity in a machine may be slightly smaller than the maximum diameters shown above. This is because the MT tooling often extends a bit past the end of the spindle that is receiving the Morse Taper Tool. For Instance, the “A” dimension for a MT2 female cavity may actually measure 0.695″ rather than 0.700″ in extreme cases, etc. The differences in dimensions grow wider as you go from MT0 to MT7.

2 Responses to "Morse Taper (MT) Dimensions Chart"

Steve S

February 19, 2015 at 12:37 am

A nice chart but it’s functionality is limited because the “K” dimension isn’t shown in the chart–without it you have to go to extra steps to determine the angle of the taper.