Morse Taper (MT) Dimensions Chart

April 12th, 2012

posted by AutoDrill

Taper#	A	D	L	B
0	0.3561	0.2520	0.5625	2.3438
1	0.4750	0.3690	0.7500	2.5625
2	0.7000	0.5720	0.8750	3.1250
3	0.9380	0.7780	1.1875	3.8750
4	1.2310	1.0200	1.2500	4.8750
5	1.7480	1.4750	1.5000	6.1250
6	2.4940	2.1160	1.750	8.5625
7	3.2700	2.7500	2.6250	11.6250

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.