General Purpose Reduced Shank

High Speed Drill Bits

SERIES 411

1/4”  Reduced Shank, 4” Length

Part Number

Drill Size

Decimal Equivalence

Overall Length

Flute Length

4110420

5/16”

.3125

4”

2-3/4”

4110424

3/8”

.3750

4”

2-3/4”

4110428

7/16”

.4375

4”

2-3/4”

4110432

1/2"

.5000

4”

2-3/4”

1/4” Reduced Shank, Jobber Length

SERIES 413

Part Number

Drill Size

Decimal Equivalence

Overall Length

Flute Length

4131417

17/64”

.2656

4-1/8”

2 - 7/8”

4131418

9/32”

.2812

4-1/4”

2 - 15/16”

4131419

19/64”

.2969

4-3/8”

3 - 1/16”

4131420

5/16”

.3125

4-1/2”

3 – 3/16”

4131421

21/64”

.3281

4-5/8”

3 – 5/16”

4131422

11/32”

.3438

4-3/4”

3 – 7/16”

4131423

23/64”

.3594

4-7/8”

3 – 1/2"

4131424

3/8”

.3750

5”

3 – 5/8”

4131425

25/64”

.3906

5-1/8”

3 – 3/4"

4131426

13/32”

.4062

5-1/4”

3 – 7/8”

4131427

27/64”

.4219

5-3/8”

3 – 15/16”

4131428

7/16”

.4375

5-1/2”

4 – 1/16”

4131429

29/64”

.4531

5-5/8”

4 – 3/16”

4131430

15/32”

.4688

5-3/4”

4 – 5/16”

4131431

31/64”

.4844

5-7/8”

4 – 3/8”

4131432

1/2"

.5000

6”

4 – 1/2"

3/8” Reduced Shank, Jobber Length

SERIES 414

Part Number

Drill Size

Decimal Equivalence

Overall Length

Flute Length

4143825

25/64”

.3906

5-1/8”

3 – 3/4"

4143826

13/32”

.4062

5-1/4”

3 – 7/8”

4143827

27/64”

.4219

5-3/8”

3 – 15/16”

4143828

7/16”

.4375

5-1/2”

4 – 1/16”

4143829

29/64”

.4531

5-5/8”

4 – 3/16”

4143830

15/32”

.4688

5-3/4”

4 – 5/16”

4143831

31/64”

.4844

5-7/8”

4 – 3/8”

4143832

1/2"

.5000

6”

4 – 1/2"