Industrial Quality Cobalt Drill Bits

High Speed Drill Bits

Cobalt Steel Drills – Jobbers Length

SERIES 481

Part Number

Drill Size

Decimal Equivalence

Overall Length

Flute Length

4811001

1/64”

.0156

3/4"

3/16”

4811002

1/32”

.0312

1-3/8”

1/2"

4811003

3/64”

.0469

1-3/4”

3/4"

4811004

1/16”

.0625

1-7/8”

7/8

4811005

5/64”

.0781

2”

1”

4811006

3/32”

.0938

2-1/4”

1-1/4”

4811007

7/64”

.1094

2-5/8”

1-1/2”

4811008

1/8”

.1250

2-3/4”

1-5/8”

4811009

9/64”

.1406

2-7/8”

1-3/4”

4811010

5/32”

.1562

3-1/8”

2”

4811011

11/64”

.1719

3-1/4”

2-1/8”

4811012

3/16”

.1875

3-1/2”

2-5/16”

4811013

13/64”

.2031

3-5/8”

2-7/16”

4811014

7/32”

.2188

3-3/4”

2-1/2”

4811015

15/64”

.2344

3-7/8”

2-5/8”

4811016

1/4"

.2500

4”

2-3/4”

4811017

17/64”

.2656

4-1/8”

2-7/8”

4811018

9/32”

.2812

4-1/4”

2-15/16”

4811019

19/64”

.2969

4-3/8”

3-1/16”

4811020

5/16”

.3125

4-1/2”

3-3/16”

4811021

21/64”

.3281

4-5/8”

3-5/16”

4811022

11/32”

.3438

4-3/4”

3-7/16”

4811023

23/64”

.3594

4-7/8”

3-1/2”

4811024

3/8”

.3750

5”

3-5/8”

4811025

25/64”

.3906

5-1/8”

3-3/4”

4811026

13/32”

.4062

5-1/4”

3-7/8”

4811027

27/64”

.4219

5-3/8”

3-15/16”

4811028

7/16”

.4375

5-1/2”

4-1/16”

4811029

29/64”

.4531

5-5/8”

4-3/16”

4811030

15/32”

.4688

5-3/4”

4-5/16”

4811031

31/64”

.4844

5-7/8”

4-3/8”

4811032

1/2”

.5000

6”

4-1/2”

Cobalt  Silver and Deming – 1/2" Shank – 6” Long

SERIES 483

Part Number

Drill Size

Decimal Equivalence

Overall Length

Flute Length

4830634

17/32”

.5312

6”

2-3/4”

4830636

9/16”

.5625

6”

2-3/4”

4830638

19/32”

.5938

6”

2-3/4”

4830640

5/8”

.6250

6”

2-3/4”

4830642

21/32”

.6562

6”

2-3/4”

4830644

11/16”

.6875

6”

2-3/4”

4830646

23/32”

.7188

6”

2-3/4”

4830648

3/4”

.7500

6”

2-3/4”

4830650

25/32”

.7812

6”

2-3/4”

4830652

13/16”

.8125

6”

2-3/4”

4830654

27/32”

.8438

6”

2-3/4”

4830656

7/8”

.8750

6”

2-3/4”

4830658

29/32”

.9062

6”

2-3/4”

4830660

15/16”

.9375

6”

2-3/4”

4830662

31/32”

.9688

6”

2-3/4”

4830664

1”

1.0000

6”

2-3/4”

4830668

1-1/16”

1.0625

6”

2-3/4”

4830672

1-1/8”

1.1250

6”

2-3/4”

4830676

1-3/16”

1.1875

6”

2-3/4”

4830680

1-1/4”

1.2500

6”

2-3/4”

4830684

1-5/16”

1.3125

6”

2-3/4”

4830688

1-3/8”

1.3750

6”

2-3/4”

4830696

1-1/2”

1.5000

6”

2-3/4”

Cobalt Drill Sets in Metal Index Cases

SERIES 484

Part Number

Description

4841013

Consists of 13 fractional size drills from 1/16" through 1/4" by 64ths

4841015

Consists of 15 fractional size drills from 1/16" through 1/2" by 32nds

4841021

Consists of 21 fractional size drills from 1/16" through 3/8" by 64ths

4841029

Consists of 29 fractional size drills from 1/16" through 1/2" by 64ths

4841060

Consists of 60 wire size drills from #1 through #60