Tapers Reference

MACHINE TOOL TAPERS REFERENCE

MORSE TAPER DIMENSION REFERENCE (inches)

Taper#	A	D	K	L	B
0	0.3561	0.2520	1.9375	0.5625	2.3438
1	0.4750	0.3690	2.0625	0.7500	2.5625
2	0.7000	0.5720	2.5000	0.8750	3.1250
3	0.9380	0.7780	3.0625	1.1875	3.8750
4	1.2310	1.0200	3.8750	1.2500	4.8750
5	1.7480	1.4750	4.9375	1.5000	6.1250
6	2.4940	2.1160	7.0000	1.750	8.5625
7	3.2700	2.7500	9.5000	2.6250	11.6250

JACOBS TAPER DIMENSION REFERENCE (inches)

Taper# A D B

0 0.2500 0.2284 0.4375

1 0.3840 0.3334 0.6563

2 0.5590 0.4876 0.8750

2A 0.5488 0.4876 0.7500

3 0.8110 0.7461 1.2100

4 1.1240 1.0372 1.6563

5 1.4130 1.3161 1.8750

6 0.6760 0.6241 1.0000

33 0.6240 0.5605 1.0000

The dimensions shown in these tables are provided for general reference only and not intended to be used for tool design or any other specific purpose.