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  1. Home
  2. Tap Extensions
  3. Inch and Metric

Inch and Metric


Diagram: Machine Tap Extension

Tap Size

Dimensions in Inches

 Standard  (Inch)

Metric
 Conversion 

A

B

C

DEF
Extension Length
Maximum
Extension
   Diameter   
Min & Max
Tap Shank
      Accepted      
Min & Max
Tap Square
      Accepted      
Length
of Small
Shank of
  Extension  
Diameter
of Small
Shank of
  Extension  
Square Shank of
 Extension 
        2"        
        4"       
        6"       
        8"       
       12"      

#0-6

M2.2, M3

.250

.137 to .141

.106 to .110
-
-.191
1012
10141016
1018
-

#8

M4

.250

.164 to .168

.127 to .131
-
-.191
1022
10241026
     1028
-

#10

M5

.250

.190 to .194

.148 to .152
-
-.191
1032
10341036
1038
-

#12

-

.312

.216 to .220

.161 to .165
2.125
.220
.165
-
10441046 
1048
1050

1/4"

M6

.375

.250 to .255

.187 to .191
2.125
.255
.191
-
10541056
1058
1060

5/16"

M7, M8

.437

.313 to .318

.234 to .238
2.125
.318
.238
-
10641066
1068
1070

3/8"

M10

.500

.376 to .381

.282 to .286
2.125
.381
.286
-
10741076
1078
1080

7/16"

-

.500

.318 to .323

.238 to .242
2.125
.323
.242
-
10841086
1088
1090

1/2"

M12.5

.500

.362 to .367

.271 to .275
2.125
.367
.275
-
10941096
1098
1100

9/16"

M14

.625

.424 to .429

.318 to .322
2.125
.429
.322
-
11041106
1108
1110

5/8"

M16

.625

.475 to .480

.356 to .360
2.125
.480
.360
-
11141116
1118
1120

11/16"

M18

.625

.537 to .542

.402 to .406
2.125
.541
.406
-
11241126
1128
1130

3/4"

-

.750

.585 to .590

.438 to .442
2.125
.590
.442
-
11341136
1138
1140

13/16"

M20

.875

.647 to .652

.485 to .489
2.125
.652
.489
-
11441146
1148
1150

7/8"

M22

.875

.692 to .697

.517 to .523
2.125
.697
.523
-
11541156
1158
1160

15/16"

M24

.875

.755 to .760

.564 to .570
2.125
.760
.570
-
11641166
1168
1170

1"

M25

1.000

.795 to .800

.594 to .600
2.125
.800
.600
-
11741176
1178
1180

1-1/8"

M27

1.125

.891 to .896

.666 to .672
2.125
.896
.672
-
11841186
1188
1190

1-1/4"

M30

1.250

1.016 to 1.021

.760 to .766
2.125
1.021
.766
-
11941196
1198
1200

*Tap Shank & Tap Square must match column B & C dimensions.
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Products [79]

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Self-Locking Tap Extension: 1-1/8
Tap Associates - Self-Locking "Jungere" Tap Extension: 1-1/8" (27 mm) Diameter, 4" Length
$185.27
In Stock
(0)
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Self-Locking Tap Extension: 5/16
Tap Associates - Self-Locking "Jungere" Tap Extension: 5/16" (M7-M8) Diameter, 4" Length
$57.00
In Stock
(0)
Add to Cart
Self-Locking Tap Extension: 5/16
Tap Associates - Self-Locking "Jungere" Tap Extension: 5/16" (M7-M8) Diameter, 8" Length
$62.21
In Stock
(0)
Add to Cart
Self-Locking Tap Extension: 5/8
Tap Associates - Self-Locking "Jungere" Tap Extension: 5/8" (M16) Diameter, 4" Length
$75.66
In Stock
(0)
Add to Cart
Self-Locking Tap Extension: 5/8
Tap Associates - Self-Locking "Jungere" Tap Extension: 5/8" (M16) Diameter, 8" Length
$82.62
In Stock
(0)
Add to Cart
Self-Locking Tap Extension: 3/4
Tap Associates - Self-Locking "Jungere" Tap Extension: 3/4" Diameter, 4" Length
$103.43
In Stock
(0)
Add to Cart
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