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Power Tools for Professionals

1/4 In. to 3/4 In. Titanium-Coated Step Drill Bit

SDT3

The Bosch line of step drills offers the ability to drill up to 13 different size holes with a single bit. Step drill bits are ideal for electrical, plumbing and HVAC contractors. Titamium-coated step drill bits remain clean and accurate even in the toughest materials; superior durability that lasts up to six times longer life than high-speed steel.

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Benefits

Technical Data

Specifications
*Note Drill bits (or extension + drill bit) in excess of 8" should never exceed 600 RPM
Application Ideal for cutting medium size holes
Diameter inch 1/4" to 3/4"
Flute Length in 1.49
Length in 2.79"
Notes Ideal for cutting medium size holes
Number of Hole Sizes 9.0
Pack Quantity 1
Shank Diameter in 0.375
Step Depth 1/8"
Step Height in 1/16"
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SDT3

Other sizes

Diameter inch

1/8" to 1/2"

Step Height in

1/32"

Step Depth

1/8"

Number of Hole Sizes

13

Shank Diameter in

0.25

Diameter inch

1/4" to 1-3/8"

Step Height in

1/8"

Step Depth

1/8"

Number of Hole Sizes

10

Shank Diameter in

0.375

Diameter inch

3/8"

Step Height in

N/A

Step Depth

N/A

Shank Diameter in

0.25

Diameter inch

3/16" to 7/8"

Step Height in

1/16"

Step Depth

1/8"

Number of Hole Sizes

12

Shank Diameter in

0.375

Diameter inch

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

Step Height in

1-1/8"

Step Depth

5/32"

Number of Hole Sizes

3

Shank Diameter in

0.375

Diameter inch

7/8"

Step Height in

N/A

Step Depth

N/A

Number of Hole Sizes

1

Shank Diameter in

0.375

Diameter inch

3/16" to 1/2"

Step Height in

1/16"

Step Depth

3/8"

Number of Hole Sizes

6

Shank Diameter in

0.25

Diameter inch

9/16" to 1"

Step Height in

1/16"

Step Depth

1/8"

Number of Hole Sizes

8

Shank Diameter in

0.375

Diameter inch

1/2"

Step Height in

N/A

Step Depth

N/A

Number of Hole Sizes

1

Shank Diameter in

0.25

Diameter inch

13/16" to 1-3/8"

Step Height in

1/16"

Step Depth

1/8"

Number of Hole Sizes

10

Shank Diameter in

0.5

Service Hotline

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

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