dcsimg

Power Tools for Professionals

SDH1

Step_drillsRevised_35_400x300(2).jpg
1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit

The Bosch line of step drills offers 13 different hole sizes with a single bit. The step drill bits are ideal for electrical, plumbing and HVAC contractors. Typical step drill bit applications include electrical knockouts, running conduit, drawbolt holes, faucet installations, auto body work, running freon lines, edge boring steel and hollow doors.

Read more Show less

Technical Data

Specification
Application All common drilling needs
Diameter 1/8" to 1/2"
Flute Length 2.0
Increments 1/32"
Length 3.0"
Number of Hole Sizes 13.0
Shank Diameter 0.25
Step Depth 1/8"

Benefits

  • Self-starting point starts on contact
  • Balance double flute eliminates chatter and vibration
  • Resharpenable cutting edge provides longer tool life
  • Three-flat shank for reduced slippage
  • For use with all common drilling needs
  • Drills clean, accurate holes in these thin materials (up to 1/8 In.): sheet metal, ducts, steel, copper, brass, aluminum, plastic, plexiglass, wood, veneers, vinyl siding, plasterboard, PVC, stainless steel and cast iron

Other sizes

Diameter

1/4" to 1-3/8"

Increments

1/8"

Step Depth

1/8"

Number of Hole Sizes

10

Shank Diameter

0.375

Diameter

1-1/8"

Increments

N/A

Step Depth

N/A

Shank Diameter

0.5

Diameter

3/16" to 7/8"

Increments

1/16"

Step Depth

1/8"

Number of Hole Sizes

12

Shank Diameter

0.375

Diameter

1/4" to 3/4"

Increments

1/16"

Step Depth

1/8"

Number of Hole Sizes

9

Shank Diameter

0.375

Diameter

1/4", 7/8", 1-1/8"

Increments

N/A

Step Depth

5/32"

Number of Hole Sizes

3

Shank Diameter

0.375

Diameter

7/8"

Increments

N/A

Step Depth

N/A

Number of Hole Sizes

1

Shank Diameter

0.375

Diameter

3/16" to 1/2"

Increments

1/16"

Step Depth

3/8"

Number of Hole Sizes

6

Shank Diameter

0.25

Diameter

9/16" to 1"

Increments

1/16"

Step Depth

1/8"

Number of Hole Sizes

8

Shank Diameter

0.375

Diameter

1/2"

Increments

N/A

Step Depth

N/A

Number of Hole Sizes

1

Shank Diameter

0.25

Diameter

13/16" to 1-3/8"

Increments

1/16"

Step Depth

1/8"

Number of Hole Sizes

10

Shank Diameter

0.5

Contact Us

Call our Service Hotline or use our contact form.

1-877-BOSCH99 (1-877-267-2499)

Mon-Fri: 7:00-19:00 CST

FAQ

Visit the Frequently Asked Questions section.
We may already have the answer for your questions.

Show FAQ
TEXT Customer Service

Have a service related question? Text us here.

Mon-Fri: 7:00-19:00 CST