Bostwick Braun | Step Drill Bits

Milwaukee® 48-89-9284 Step Drill Bit, 3/16 in Diameter Minimum Hole, 7/8 in Diameter Maximum Hole

Part #

MIL48-89-9284

MFG Part #

48-89-9284

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Irwin® Unibit® 10314 Step Drill Bit, 1-7/32 in Dia Min Hole, 1-7/32 in Dia Max Hole, HSS, 1 Hole Sizes, 7/16 in Shank

Part #

UNB121

MFG Part #

10314

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Stanley Black & Decker® Lenox® 30883 Step Drill Bit, 9 Hole Sizes

Part #

/LENESD04

MFG Part #

30883

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Stanley Black & Decker® Lenox® Vari-Bit® 30881VB1 Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, HSS, 13 Hole Sizes, 1/4 in Shank

Part #

LENO30881-VB1

MFG Part #

30881VB1

Standard Pack

Irwin® Unibit® 10234 Step Drill Bit, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, HSS, 12 Hole Sizes, 3/8 in Shank

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Irwin® Unibit® 10234 Step Drill Bit, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, HSS, 12 Hole Sizes, 3/8 in Shank

Part #

UNB1887

MFG Part #

10234

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Stanley Black & Decker® Lenox® 30882VB2 Step Drill Bit, 1/2 in Minimum Hole Dia, 1 in Maximum Hole Dia, 9 Hole Sizes, 1/4 in Shank

Part #

/LENESD07

MFG Part #

30882VB2

Hayden 01-10-57680 Step Drill Bit, Carbide

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Hayden Twist Drill & Tool Co Inc.

Hayden 01-10-57680 Step Drill Bit, Carbide

Part #

STIP01-10-57680

MFG Part #

01-10-57680

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Irwin® Unibit® 10231 Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, HSS, 13 Hole Sizes, 1/4 in Shank

Part #

UNB1250

MFG Part #

10231

Irwin® UNIBIT® 10235 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, High Speed Steel, 5 Hole Sizes, 7/16 in Shank

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Irwin® UNIBIT® 10235 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, High Speed Steel, 5 Hole Sizes, 7/16 in Shank

Part #

UNB25137

MFG Part #

10235

Standard Pack

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ARCH Cutting Tools

ARCH 4031749 Oil Hole Step Drill Bit

Part #

4031749

MFG Part #

4031749

Irwin® Unibit® 10220 Step Drill Bit, 9/16 in Dia Min Hole, 1 in Dia Max Hole, 8 Steps, High Speed Steel, 8 Hole Sizes, 7/16 in Shank

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Irwin® Unibit® 10220 Step Drill Bit, 9/16 in Dia Min Hole, 1 in Dia Max Hole, 8 Steps, High Speed Steel, 8 Hole Sizes, 7/16 in Shank

Part #

UNB5610

MFG Part #

10220

Standard Pack

Greenlee® GSB09 Multi-Hole Step Drill Bit, 3/16 in Dia Min Hole, 1/8 in Dia Max Hole, 4 Steps, Mild Steel

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Emerson Electric

Greenlee® GSB09 Multi-Hole Step Drill Bit, 3/16 in Dia Min Hole, 1/8 in Dia Max Hole, 4 Steps, Mild Steel

Part #

332-GSB09

MFG Part #

GSB09

Champion® MSD 1/2 X 3/16 Step Drill Bit, 3/16 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 6 Steps, High Speed Steel

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Champion® MSD 1/2 X 3/16 Step Drill Bit, 3/16 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 6 Steps, High Speed Steel

Part #

UNB1850CH

MFG Part #

MSD 1/2 X 3/16

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EZ Cut Tool

EZ Cut Tool 948-6-01-21 Flat Bottom Step Drill Bit, High Speed Steel, 3/8 in Shank

Part #

ECTQUOTE948

MFG Part #

948-6-01-21

Standard Pack

EACH

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Milwaukee® 48-89-9281 Step Drill Bit, 1/8 in Diameter Minimum Hole, 1/2 in Diameter Maximum Hole

Part #

MIL48-89-9281

MFG Part #

48-89-9281

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Stanley Black & Decker® Lenox® 30912VB12 Step Drill Bit, 7/8 in Dia Min Hole, 1-3/8 in Dia Max Hole, 5 Steps, HSS, 5 Hole Sizes, 3/8 in Shank

Part #

LENO30912-VB12

MFG Part #

30912VB12

Standard Pack

Milwaukee® 48-89-9224 Step Drill Bit Set, SAE, 2 Flutes, Flat Shank

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Milwaukee® 48-89-9224 Step Drill Bit Set, SAE, 2 Flutes, Flat Shank

Part #

MIL48-89-9224

MFG Part #

48-89-9224

Irwin® Unibit® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, HSS, 9 Hole Sizes, 3/8 in Shank

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Irwin® Unibit® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, HSS, 9 Hole Sizes, 3/8 in Shank

Part #

UNB2575

MFG Part #

10233

Standard Pack

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Milwaukee® SHOCKWAVE™ Impact Duty™ 48-89-9248 Impact Step Drill Bit, 1/8 in Dia Min Hole, 1 in Dia Max Hole, 9 Steps, Titanium, 9 Hole Sizes, 1/4 in Shank

Part #

MIL48-89-9248

MFG Part #

48-89-9248

Alfa USA® MB52511 Step Drill, 3/16 in Minimum Hole Dia, 7/8 in Maximum Hole Dia, 12 Steps, Steel, 3/8 in Shank

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Alfa USA® MB52511 Step Drill, 3/16 in Minimum Hole Dia, 7/8 in Maximum Hole Dia, 12 Steps, Steel, 3/8 in Shank

Part #

MB52511

MFG Part #

MB52511

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Milwaukee® 48-89-9241 Impact Step Drill Bit, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 13 Steps, Titanium, 13 Hole Sizes, 1/4 in Shank

Part #

MIL48-89-9241

MFG Part #

48-89-9241

Champion ProLine MB52504 Step Drill Bit, 1 Steps, HSS, 1/4 in Shank

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Champion ProLine MB52504 Step Drill Bit, 1 Steps, HSS, 1/4 in Shank

Part #

/MB52504

MFG Part #

MB52504

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Milwaukee® 48-89-9201 Step Drill Bit, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 13 Steps, High Speed Steel, 13 Hole Sizes, 1/4 in Shank

Part #

MIL48-89-9201

MFG Part #

48-89-9201

Alfa USA® MBML13 Step Drill Bit, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 13 Steps, High Speed Steel, 1/4 in Shank

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Alfa USA® MBML13 Step Drill Bit, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 13 Steps, High Speed Steel, 1/4 in Shank

Part #

MBML13

MFG Part #

MBML13

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Milwaukee® 48-89-9284 Step Drill Bit, 3/16 in Diameter Minimum Hole, 7/8 in Diameter Maximum Hole

Part #

MIL48-89-9284

MFG Part #

48-89-9284

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Irwin® Unibit® 10314 Step Drill Bit, 1-7/32 in Dia Min Hole, 1-7/32 in Dia Max Hole, HSS, 1 Hole Sizes, 7/16 in Shank

Part #

UNB121

MFG Part #

10314

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Stanley Black & Decker® Lenox® 30883 Step Drill Bit, 9 Hole Sizes

Part #

/LENESD04

MFG Part #

30883

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Stanley Black & Decker® Lenox® Vari-Bit® 30881VB1 Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, HSS, 13 Hole Sizes, 1/4 in Shank

Part #

LENO30881-VB1

MFG Part #

30881VB1

Standard Pack

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Irwin® Unibit® 10234 Step Drill Bit, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, HSS, 12 Hole Sizes, 3/8 in Shank

Part #

UNB1887

MFG Part #

10234

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Stanley Black & Decker® Lenox® 30882VB2 Step Drill Bit, 1/2 in Minimum Hole Dia, 1 in Maximum Hole Dia, 9 Hole Sizes, 1/4 in Shank

Part #

/LENESD07

MFG Part #

30882VB2

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Hayden Twist Drill & Tool Co Inc.

Hayden 01-10-57680 Step Drill Bit, Carbide

Part #

STIP01-10-57680

MFG Part #

01-10-57680

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Irwin® Unibit® 10231 Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, HSS, 13 Hole Sizes, 1/4 in Shank

Part #

UNB1250

MFG Part #

10231

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Irwin® UNIBIT® 10235 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, High Speed Steel, 5 Hole Sizes, 7/16 in Shank

Part #

UNB25137

MFG Part #

10235

Standard Pack

Compare

ARCH Cutting Tools

ARCH 4031749 Oil Hole Step Drill Bit

Part #

4031749

MFG Part #

4031749

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Irwin® Unibit® 10220 Step Drill Bit, 9/16 in Dia Min Hole, 1 in Dia Max Hole, 8 Steps, High Speed Steel, 8 Hole Sizes, 7/16 in Shank

Part #

UNB5610

MFG Part #

10220

Standard Pack

Compare

Emerson Electric

Greenlee® GSB09 Multi-Hole Step Drill Bit, 3/16 in Dia Min Hole, 1/8 in Dia Max Hole, 4 Steps, Mild Steel

Part #

332-GSB09

MFG Part #

GSB09

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Champion® MSD 1/2 X 3/16 Step Drill Bit, 3/16 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 6 Steps, High Speed Steel

Part #

UNB1850CH

MFG Part #

MSD 1/2 X 3/16

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EZ Cut Tool

EZ Cut Tool 948-6-01-21 Flat Bottom Step Drill Bit, High Speed Steel, 3/8 in Shank

Part #

ECTQUOTE948

MFG Part #

948-6-01-21

Standard Pack

EACH

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Milwaukee® 48-89-9281 Step Drill Bit, 1/8 in Diameter Minimum Hole, 1/2 in Diameter Maximum Hole

Part #

MIL48-89-9281

MFG Part #

48-89-9281

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Stanley Black & Decker® Lenox® 30912VB12 Step Drill Bit, 7/8 in Dia Min Hole, 1-3/8 in Dia Max Hole, 5 Steps, HSS, 5 Hole Sizes, 3/8 in Shank

Part #

LENO30912-VB12

MFG Part #

30912VB12

Standard Pack

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Milwaukee® 48-89-9224 Step Drill Bit Set, SAE, 2 Flutes, Flat Shank

Part #

MIL48-89-9224

MFG Part #

48-89-9224

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Irwin® Unibit® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, HSS, 9 Hole Sizes, 3/8 in Shank

Part #

UNB2575

MFG Part #

10233

Standard Pack

Compare

Milwaukee® SHOCKWAVE™ Impact Duty™ 48-89-9248 Impact Step Drill Bit, 1/8 in Dia Min Hole, 1 in Dia Max Hole, 9 Steps, Titanium, 9 Hole Sizes, 1/4 in Shank

Part #

MIL48-89-9248

MFG Part #

48-89-9248

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Alfa USA® MB52511 Step Drill, 3/16 in Minimum Hole Dia, 7/8 in Maximum Hole Dia, 12 Steps, Steel, 3/8 in Shank

Part #

MB52511

MFG Part #

MB52511

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Milwaukee® 48-89-9241 Impact Step Drill Bit, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 13 Steps, Titanium, 13 Hole Sizes, 1/4 in Shank

Part #

MIL48-89-9241

MFG Part #

48-89-9241

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Champion ProLine MB52504 Step Drill Bit, 1 Steps, HSS, 1/4 in Shank

Part #

/MB52504

MFG Part #

MB52504

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Milwaukee® 48-89-9201 Step Drill Bit, 1/8 in Minimum Hole Dia, 1/2 in Maximum Hole Dia, 13 Steps, High Speed Steel, 13 Hole Sizes, 1/4 in Shank

Part #

MIL48-89-9201

MFG Part #

48-89-9201

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