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JARNO AND BROWN & SHARPE TAPER SPECIFICATIONS

JARNO TAPERS

TAPER
NO.

LARGE
END

SMALL
END

LENGTH

TAPER 
PER INCH

#2

0.2500

0.2000

1.00

0.500

#3

0.3750

0.3000

1.50

0.500

#4

0.5000

0.4000

2.00

0.500

#5

0.6250

0.5000

2.50

0.500

#6

0.7500

0.6000

3.00

0.500

#7

0.8750

0.7000

3.50

0.500

#8

1.0000

0.8000

4.00

0.500

#9

1.1250

0.9000

4.50

0.500

#10

1.2500

1.0000

5.00

0.500

#11

1.3750

1.1000

5.50

0.500

#12

1.5000

1.2000

6.00

0.500

#13

1.6250

1.3000

6.50

0.500

#14

1.7500

1.4000

7.00

0.500

#15

1.8750

1.5000

7.50

0.500

#16

2.0000

1.6000

8.00

0.500

#17

2.1250

1.7000

8.50

0.500

#18

2.2500

1.8000

9.00

0.500

#19

2.3750

1.9000

9.50

0.500

#20

2.5000

2.0000

10.00

0.500

 

BROWN & SHARPE TAPERS

TAPER
NO.

LARGE
END

SMALL
END

TAPER
PER INCH

# 1

0.2392

0.2000

0.418

# 2

0.2997

0.2500

0.418

# 3

0.3753

0.3125

0.418

# 4

0.4207

0.3500

0.419

# 5

0.5388

0.4500

0.418

# 6

0.5996

0.5000

0.419

# 7

0.7201

0.6000

0.418

# 8

0.8987

0.7500

0.418

# 9

1.0775

0.9001

0.417

# 10

1.2597

1.0447

0.430

# 11

1.4978

1.2500

0.418

# 12

1.7968

1.5001

0.416

# 13

2.0731

1.7501

0.417

# 14

2.3438

2.0000

0.417

# 15

2.6146

2.2500

0.417

# 16

2.8854

2.5000

0.417

# 17

3.1563

2.7500

0.417

# 18

3.4271

3.0000

0.417

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Copyright 2001 METALWORKING BOOKS
Last modified: December 08, 2001