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[W.L. Fuller, Inc.] [Drill Charts] [Drill Length Chart]
Drill-Length-Chart
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Use this drill length chart to determine the over all length of the drill you need. To figure out the over all length of non-fractional drills, find the closest decimal equivalent to the drill you need. The over all length of the two drills should be similar. This chart is not accurate for Solid Carbide Drills(204 series), Carbide Tipped Drills(291 series), and Carbide Tipped drills for Hardened Steel(CT705 series).

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Drill Charts
Steel Types

Size

Short Length

 

Regular Length

 

Long Length

Size

Dec. Equiv.

Flute  Length

Overall Length

 

Flute  Length

Overall Length

 

Flute  Length

Overall Length

1/64

.0156

 

 

 

3/16

3/4

 

5/16

1-1/2

1/32

.0312

 

 

 

1/2

1-3/8

 

3/4

2

3/64

.0469

1/2

1-3/8

 

3/4

1-3/4

 

1-1/8

2-1/4

1/16

.0625

5/8

1-5/8

 

7/8

1-7/8

 

1-3/4

3

5/64

.0781

11/16

1-11/16

 

1

2

 

2

3-3/4

3/32

.0937

3/4

1-3/4

 

1-1/4

2-1/4

 

2-1/4

4-1/4

7/64

.1094

13/16

1-13/16

 

1-1/2

2-5/8

 

2-1/2

4-5/8

1/8

.1250

7/8

1-7/8

 

1-5/8

2-3/4

 

2-3/4

5-1/8

9/64

.1406

15/16

1-15/16

 

1-3/4

2-7/8

 

3

5-3/8

5/32

.1562

1

2-1/16

 

2

3-1/8

 

3

5-3/8

11/64

.1719

1-1/16

2-1/8

 

2-1/8

3-1/4

 

3-3/8

5-3/4

3/16

.1875

1-1/8

2-3/16

 

2-5/16

3-1/2

 

3-3/8

5-3/4

13/64

.2031

1-3/16

2-1/4

 

2-7/16

3-5/8

 

3-5/8

6

7/32

.2188

1-1/4

2-3/8

 

2-1/2

3-3/4

 

3-5/8

6

15/64

.2344

1-5/16

2-7/16

 

2-5/8

3-7/8

 

3-3/4

6-1/8

1/4

.2500

1-3/8

2-1/2

 

2-3/4

4

 

3-3/4

6-1/8

17/64

.2656

1-7/16

2-5/8

 

2-7/8

4-1/8

 

3-7/8

6-1/4

9/32

.2812

1-1/2

2-11/16

 

2-15/16

4-1/4

 

3-7/8

6-1/4

19/64

.2969

1-9/16

2-3/4

 

3-1/16

4-3/8

 

4

6-3/8

5/16

.3125

1-5/8

2-13/16

 

3-3/16

4-1/2

 

4

6-3/8

21/64

.3281

1-11/16

2-15/16

 

3-5/16

4-5/8

 

4-1/8

6-1/2

11/32

.3438

1-11/16

3

 

3-7/16

4-3/4

 

4-1/8

6-1/2

23/64

.3594

1-3/4

3-1/16

 

3-1/2

4-7/8

 

4-1/4

6-3/4

3/8

.3750

1-13/16

3-1/8

 

3-5/8

5

 

4-1/4

6-3/4

25/64

.3906

1-7/8

3-1/4

 

3-3/4

5-1/8

 

4-3/8

7

13/32

.4062

1-15/16

3-5/16

 

3-7/8

5-1/4

 

4-3/8

7

27/64

.4219

2

3-3/8

 

3-15/16

5-3/8

 

4-5/8

7-1/4

7/16

.4375

2-1/16

3-7/16

 

4-1/16

5-1/2

 

4-5/8

7-1/4

29/64

.4531

2-1/8

3-9/16

 

4-3/16

5-5/8

 

4-3/4

7-1/2

15/32

.4688

2-1/8

3-5/8

 

4-5/16

5-3/4

 

4-3/4

7-1/2

31/64

.4844

2-3/16

3-11/16

 

4-3/8

5-7/8

 

4-3/4

7-3/4

1/2

.5000

2-1/4

3-3/4

 

4-1/2

6

 

4-3/4

7-3/4

33/64

.5156

2-3/8

3-7/8

 

4-13/16

6-5/8

 

4-3/4

8

17/32

.5312

2-3/8

3-7/8

 

4-13/16

6-5/8

 

4-3/4

8

35/64

.5469

2-1/2

4

 

4-1316

6-5/8

 

4-7/8

8-1/4

9/16

.5625

2-1/2

4

 

4-13/16

6-5/8

 

4-7/8

8-1/4

37/64

.5781

2-5/8

4-1/8

 

4-13/16

6-5/8

 

4-7/8

8-3/4

19/32

.5938

2-5/8

4-1/8

 

5-3/16

7-1/8

 

4-7/8

8-3/4

39/64

.6094

2-3/4

4-1/4

 

5-3/16

7-1/8

 

4-7/8

8-3/4

5/8

.6250

2-3/4

4-1/4

 

5-3/16

7-1/8

 

4-7/8

8-3/4

41/64

.6406

2-7/8

4-1/2

 

5-3/16

7-1/8

 

5-1/8

9

21/32

.6562

2-7/8

4-1/2

 

5-3/16

7-1/8

 

5-1/8

9

43/64

.6719

2-7/8

4-5/8

 

5-5/8

7-5/8

 

5-3/8

9-1/4

11/16

.6875

2-7/8

4-5/8

 

5-5/8

7-5/8

 

5-3/8

9-1/4

45/64

.7031

3

4-3/4

 

 

 

 

5-5/8

9-1/2

23/32

.7188

3

4-3/4

 

 

 

 

5-5/8

9-1/2

47/64

.7344

3-1/8

5

 

 

 

 

5-7/8

9-3/4

3/4

.7500

3-1/8

5

 

 

 

 

5-7/8

9-3/4

49/64

.7656

3-1/4

5-1/8

 

 

 

 

6

9-7/8

25/32

.7812

3-1/4

5-1/8

 

 

 

 

6

9-7/8

51/64

.7969

3-3/8

5-1/4

 

 

 

 

6-1/8

10

13/16

.8125

3-3/8

5-1/4

 

 

 

 

6-1/8

10

53/64

.8281

3-1/2

5-3/8

 

 

 

 

6-1/8

10

27/32

.8438

3-1/2

5-3/8

 

 

 

 

6-1/8

10

55/64

.8594

3-1/2

5-1/2

 

 

 

 

6-1/8

10

7/8

.8750

3-1/2

5-1/2

 

 

 

 

6-1/8

10

57/64

.8906

3-5/8

5-5/8

 

 

 

 

6-1/8

10

29/32

.9062

3-5/8

5-5/8

 

 

 

 

6-1/8

10

59/64

.9219

3-3/4

5-3/4

 

 

 

 

6-1/8

10-3/4

15/16

.9375

3-3/4

5-3/4

 

 

 

 

6-1/8

10-3/4

61/64

.9531

3-7/8

5-7/8

 

 

 

 

6-3/8

11

31/32

.9688

3-7/8

5-7/8

 

 

 

 

6-3/8

11

63/64

.9844

4

6

 

 

 

 

6-3/8

11

1

1.000

4

6

 

 

 

 

6-3/8

11

1-1/8

1.125

4

6-3/8

 

 

 

 

7-1/8

11-3/4

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