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[W.L. Fuller, Inc.] [Products] [Counterbores] [Type "R"]

Designed to cut clean holes in wood and plastic. Can also be used with stop collars. Counterbores for the flat under the heads of nails, spikes, and bolts. Allowing them to be sunk far enough beneath the surface to allow for a wood plug to be used to cover the head. Can be set at any point on a twist drill and held fast with two hex-socket set screws. Designed for clean cutting. Made of Carbon Steel and heat-treated for long tool life. We have several types of counterbores.

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Drill Charts
Steel Types

The Type “R” counterbores are made of stainless steel. The extension lip pattern cutting edges allow it to cut clean holes through wood and plastic without tearing.

All sizes have a 1” overall length.

Drills for Counterbores

Sets

Type “R” mounted on a Brad Point Drill

*Special Sizes - Quotation on Request*

Type “R” Stock Sizes

Stock Number

Cutting Diameter

Drill Size

R17

3/8

7/64

*R1

3/8

1/8

R19

3/8

9/64

R15

3/8

5/32

R111

3/8

11/64

R13

3/8

3/16

R113

3/8

13/64

*R72

7/16

1/8

*R75

7/16

5/32

R73

7/16

3/16

R713

7/16

13/64

*R22

1/2

1/8

*R25

1/2

5/32

R211

1/2

11/64

*R23

1/2

3/16

R213

1/2

13/64

*R27

1/2

7/32

*R215

1/2

15/64

*R24

1/2

1/4

R93

9/16

3/16

R97

9/16

7/32

R94

9/16

1/4

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