Brown & Sharpe Tapers

Brown & Sharpe Taper Dimensions

Brown & Sharpe tapers, standardized by the company of the same name, are an alternative to the more-commonly seen Morse taper.

Like the Morse, these have a series of sizes, from 1 to 18, with 7, 9 and 11 being the most common.

Actual taper on these lies within a narrow range close to .500 inches per foot.

Size	Lg. Dia.	Sm. Dia.	Length	Taper (in/ft)	Taper (in/in)
1	0.2392	0.2000	0.94	0.5020	0.04183
2	0.2997	0.2500	1.19	0.5020	0.04183
3	0.3753	0.3125	1.50	0.5020	0.04183
4	0.4207	0.3500	1.69	0.5024	0.04187
5	0.5388	0.4500	2.13	0.5016	0.04180
6	0.5996	0.5000	2.38	0.5033	0.04194
7	0.7201	0.6000	2.88	0.5010	0.04175
8	0.8987	0.7500	3.56	0.5010	0.04175
9	1.0775	0.9001	4.25	0.5009	0.04174
10	1.2597	1.0447	5.00	0.5161	0.04301
11	1.4978	1.2500	5.94	0.5010	0.04175
12	1.7968	1.5001	7.13	0.4997	0.04164
13	2.0731	1.7501	7.75	0.5002	0.04168
14	2.3438	2.0000	8.25	0.5000	0.04167
15	2.6146	2.2500	8.75	0.5000	0.04167
16	2.8854	2.5000	9.25	0.5000	0.04167
17	3.1563	2.7500	9.75	0.5000	0.04167
18	3.4271	3.0000	10.25	0.5000	0.04167