Step Drill Bits

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Color

Natural White (1)

Cutting Edge Material

HSS (14)

Drill Diameter Measurement System

Imperial (14)

Finish

Bright (9)

TiN Coated (5)

Hole Sizes Cut

12 (1)

8 (1)

Letter/Wire Size

#1 (1)

#11 (2)

#13 (1)

#2 (1)

#20 (1)

#3 (1)

#4 (1)

#4T (1)

#5 (1)

Material

HSS (14)

Maximum Hole Diameter

1 in (1)

1-1/8 in (1)

1-3/8 in (2)

1/2 in (4)

3/4 in (2)

7/8 in (4)

Minimum Hole Diameter

1-1/8 in (1)

1/4 in (3)

1/8 in (2)

13/16 in (1)

3/16 in (4)

7/8 in (2)

9/16 in (1)

Number of Flutes

1 (14)

Number of Hole Sizes

1 (3)

10 (2)

12 (2)

13 (2)

6 (2)

8 (1)

9 (2)

Number of Steps

1 (1)

10 (2)

12 (2)

13 (2)

6 (2)

8 (1)

9 (2)

Overall Length

2 in (1)

2-1/2 in (1)

3-1/4 in (3)

Point Type

Self-Starting SpeedPoint® (12)

SpeedPoint® (2)

Shank Size

1/4 in (4)

3/8 in (6)

7/16 in (4)

Shank Type

3-Flat (3)

Hex (11)

Step Depth

1/16 in (6)

1/32 in (2)

1/8 in (3)

Type

Hole Enlarging (2)

Self-Starting (3)

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Irwin® Unibit®

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

PET20MFG #:10220

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

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

PET1MFG #:10231/1

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10232 Self-Starting Step Drill Bit, 3/16 in Dia Min Hole, 1/2 in Dia Max Hole, 6 Steps, 6 Hole Sizes, 1/4 in Shank

PET2MFG #:10232/2

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

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

PET3MFG #:10233/3

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10234SM 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

PET4MFG #:10234/4

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10235 Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, HSS, 10 Hole Sizes, 7/16 in Shank

PET5MFG #:10235/5

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10311 Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank

PET11MFG #:10311/11

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10311ZR Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank

PET011MFG #:10311ZR

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

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

PET20MFG #:10220

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

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

PET1MFG #:10231/1

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10232 Self-Starting Step Drill Bit, 3/16 in Dia Min Hole, 1/2 in Dia Max Hole, 6 Steps, 6 Hole Sizes, 1/4 in Shank

PET2MFG #:10232/2

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

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

PET3MFG #:10233/3

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10234SM 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

PET4MFG #:10234/4

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10235 Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, HSS, 10 Hole Sizes, 7/16 in Shank

PET5MFG #:10235/5

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10311 Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank

PET11MFG #:10311/11

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

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Irwin® Unibit®

Irwin® Unibit® 10311ZR Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank

PET011MFG #:10311ZR

Cutting Edge Material

HSS

Drill Diameter Measurement System

Imperial

Finish

Bright

Price Not Available

QTY

Add to Cart

ADD TO LIST

Results Per Page

8162432