Page History: Dimensions of Standard Tapers

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Table of Contents [Hide/Show] Morse Tapers Jacobs Tapers Brown & Sharpe Tapers Jarno Tapers

Morse Tapers¶

Taper	Large End	Small End	Length	Taper/ Foot	Taper/ Inch	Angle From Center
#0	0.3561	0.2520	2.00	.6246	.0521	1.4908
#1	0.4750	0.3690	2.13	.5986	.0499	1.4287
#2	0.7000	0.5720	2.56	.5994	.0500	1.4307
#3	0.9380	0.7780	3.19	.6024	.0502	1.4377
#4	1.2310	1.0200	4.06	.6233	.0519	1.4876
#4-1/2	1.5000	1.2660	4.50	.6240	.0520	1.4894
#5	1.7480	1.4750	5.19	.6315	.0526	1.5073
#6	2.4940	2.1160	7.25	.6257	.0521	1.4933
#7	3.2700	2.7500	10.00	.6240	.0520	1.4894

Jacobs Tapers¶

Taper	Large End	Small End	Length	Taper/ Foot	Taper/ Inch	Angle From Center
#0	0.2500	0.2284	0.44	.5915	.0493	1.4117
#1	0.3840	0.3334	0.66	.9251	.0771	2.2074
#2	0.5590	0.4876	0.88	.9786	.0816	2.3350
#2 Short	0.5488	0.4876	0.75	.9786	.0816	2.3350
#3	0.8110	0.7461	1.22	.6390	.0532	1.5251
#4	1.1240	1.0372	1.66	.6289	.0524	1.5009
#5	1.4130	1.3161	1.88	.6201	.0517	1.4801
#6	0.6760	0.6241	1.00	.6229	.0519	1.4868
#33	0.6240	0.5605	1.00	.7619	.0635	1.8184

Brown & Sharpe Tapers¶

Taper	Large End	Small End	Length	Taper/ Foot	Taper/ Inch	Angle From Center
#1	0.2392	0.2000	0.94	.5020	.0418	1.1983
#2	0.2997	0.2500	1.19	.5020	.0418	1.1983
#3	0.3753	0.3125	1.50	.5020	.0418	1.1983
#4	0.4207	0.3500	1.69	.5024	.0419	1.1992
#5	0.5388	0.4500	2.13	.5016	.0418	1.1973
#6	0.5996	0.5000	2.38	.5033	.0419	1.2013
#7	0.7201	0.6000	2.88	.5015	.0418	1.1970
#8	0.8987	0.7500	3.56	.5010	.0418	1.1959
#9	1.0775	0.9001	4.25	.5009	.0417	1.1955
#10	1.2597	1.0447	5.00	.5161	.0430	1.2320
#11	1.4978	1.2500	5.94	.5010	.0418	1.1959
#12	1.7968	1.5001	7.13	.4997	.0416	1.1928
#13	2.0731	1.7501	7.75	.5002	.0417	1.1940
#14	2.3438	2.0000	8.25	.5000	.0417	1.1935
#15	2.6146	2.2500	8.75	.5000	.0417	1.1935
#16	2.8854	2.5000	9.25	.5000	.0417	1.1935
#17	3.1563	2.7500	9.75	.5000	.0417	1.1935
#18	3.4271	3.0000	10.25	.5000	.0417	1.1935

Jarno Tapers¶

Taper	Large End	Small End	Length	Taper/ Foot	Taper/ Inch	Angle From Center
#2	0.2500	0.2000	1.00	.6000	.0500	1.4321
#3	0.3750	0.3000	1.50	.6000	.0500	1.4321
#4	0.5000	0.4000	2.00	.6000	.0500	1.4321
#5	0.6250	0.5000	2.50	.6000	.0500	1.4321
#6	0.7500	0.6000	3.00	.6000	.0500	1.4321
#7	0.8750	0.7000	3.50	.6000	.0500	1.4321
#8	1.0000	0.8000	4.00	.6000	.0500	1.4321
#9	1.1250	0.9000	4.50	.6000	.0500	1.4321
#10	1.2500	1.0000	5.00	.6000	.0500	1.4321
#11	1.3750	1.1000	5.50	.6000	.0500	1.4321
#12	1.5000	1.2000	6.00	.6000	.0500	1.4321
#13	1.6250	1.3000	6.50	.6000	.0500	1.4321
#14	1.7500	1.4000	7.00	.6000	.0500	1.4321
#15	1.8750	1.5000	7.50	.6000	.0500	1.4321
#16	2.0000	1.6000	8.00	.6000	.0500	1.4321
#17	2.1250	1.7000	8.50	.6000	.0500	1.4321
#18	2.2500	1.8000	9.00	.6000	.0500	1.4321
#19	2.3750	1.9000	9.50	.6000	.0500	1.4321
#20	2.5000	2.0000	10.00	.6000	.0500	1.4321