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[W.L. Fuller, Inc.] [Products] [Countersinks] [Type "J"]
Type-J
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Used to countersink and counterbore for the heads of screws in woods, plastics, and non-ferrous materials. Made of Carbon Steel and heat-treated for long tool life. We have several types of countersinks.

Type J Countersink

Type “J” Countersink

The type “J” countersink has a 1/4” shank to fit the chuck and reduce the breakage of small diameter drills

All Sizes 1-1/2” Overall Length with 3/4” long shanks.
Type 'JH' Countersink

Type “JH” Countersink

The Type “JH” Countersinks have 1/4 hex shanks with power grooves that  are designed to work with the Quick Change System.

Type JH are 2” OAL with a 1/4 Hex Shank

Type “J” Stock Sizes

Stock Number

Cutting Diameter

Drill Hole Size

Stock Number With 1/4” Hex Shank

J56

3/8

3/32

J56H

J4

3/8

7/64

J4H

J5

3/8

1/8

J5H          N

J6

3/8

9/64

J6H         E

J7

3/8

5/32

J7H         W

J8

3/8

11/64

J8H

J9

3/8

3/16

J9H          I

J25

1/2

1/8

J25H        T

J26

1/2

9/64

J26H        E

J27

1/2

5/32

J27H        M

J28

1/2

11/64

J28H

J29

1/2

3/16

X

*J35

5/8

1/8

X

*J37

5/8

5/32

X

*J39

5/8

3/16

X

Drills for Countersinks
Type J on drill

Type “J” Mounted on Regular Point Drill
J hex mounted

Type “JH” Mounted on Short Length Regular Point Drill

*Special Sizes - Quotation on Request*

* = Overall Length 1-3/4”
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