Jarno Taper Size Chart Table

Manufacturing and Design Data

Jarno tapers have a of taper of about 1:20 on diameter, or .600" on diameter per foot, or .050" on diameter per inch. The large diameter size can be obtained by dividing by 8, the small end is always the taper size divided by 10 and the length is the taper size divided by 2.

Jarno Taper‚Äč

Notes:

All dimension data given in inches,

Jarno Taper Shanks
Taper
Designation
Length
A
Length
B
Diameter
C
Diameter
D
Taper
per foot
2 1 1/8 1 0.20 0.250 0.600
3 1 5/8 1 1/2 0.30 0.375 0.600
4 2 3/16 2 0.40 0.500 0.600
5 2 11/16 2 1/2 0.50 0.625 0.600
6 3 3/16 3 0.60 0.750 0.600
7 3 11/16 3 1/2 0.70 0.875 0.600
8 4 3/16 4 0.80 1.000 0.600
9 4 11/16 4 1/2 0.90 1.125 0.600
10 5 1/4 5 1.00 1.250 0.600
11 5 3/4 5 1/2 1.10 1.375 0.600
12 6 1/4 6 1.20 1.500 0.600
13 6 3/4 6 1/2 1.30 1.625 0.600
14 7 1/4 7 1.40 1.750 0.600
15 7 3/4 7 1/2 1.50 1.875 0.600
16 8 /16 8 1.60 2.000 0.600
17 8 13/16 8 1/2 1.70 2.125 0.600
18 9 5/16 9 1.80 2.250 0.600
19 9 13/16 9 1/2 1.90 2.375 0.600
20 10 5/16 10 2.00 2.500 0.600
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