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
13/16 In. to 1-3/8 In. Titanium-Coated Step Drill Bit
.png)
.png)
Hover Image to Zoom
Hover Image to Zoom
SDT9
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.
Benefits
Super-hard titanium coating lasts up to six times longer than high-speed steel
Titanium reduces heat for longer life
Self-starting point starts on contact
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
Balanced double flute eliminates chatter and vibration
Technical Data
| *Note | Drill bits (or extension + drill bit) in excess of 8" should never exceed 600 RPM |
| Application | For 1" conduit and tubing (requires 3/4" pilot hole) |
| Diameter | 13/16" to 1-3/8" |
| Flute Length | 2.0 |
| Increments | 1/16" |
| Length | 3.0" |
| Notes | For 1" conduit and tubing, requires 3/4" or larger pilot hole |
| Number of Hole Sizes | 10.0 |
| Shank Diameter | 0.5 |
| Step Depth | 1/8" |
SDT9
SDT9
SDT1
SDT10
SDT12
SDT2
SDT3
SDT4
SDT5
SDT6
SDT7
SDT8
Other sizes
SDT1
Diameter
1/8" to 1/2"
Increments
1/32"
Step Depth
1/8"
Number of Hole Sizes
13
Shank Diameter
0.25
SDT10
Diameter
1/4" to 1-3/8"
Increments
1/8"
Step Depth
1/8"
Number of Hole Sizes
10
Shank Diameter
0.375
SDT12
Diameter
3/8"
Increments
N/A
Step Depth
N/A
Shank Diameter
0.25
SDT2
Diameter
3/16" to 7/8"
Increments
1/16"
Step Depth
1/8"
Number of Hole Sizes
12
Shank Diameter
0.375
SDT3
Diameter
1/4" to 3/4"
Increments
1/16"
Step Depth
1/8"
Number of Hole Sizes
9
Shank Diameter
0.375
SDT4
Diameter
1/4", 7/8", 1-1/8"
Increments
1-1/8"
Step Depth
5/32"
Number of Hole Sizes
3
Shank Diameter
0.375
SDT5
Diameter
7/8"
Increments
N/A
Step Depth
N/A
Number of Hole Sizes
1
Shank Diameter
0.375
SDT6
Diameter
3/16" to 1/2"
Increments
1/16"
Step Depth
3/8"
Number of Hole Sizes
6
Shank Diameter
0.25
SDT7
Diameter
9/16" to 1"
Increments
1/16"
Step Depth
1/8"
Number of Hole Sizes
8
Shank Diameter
0.375
SDT8
Diameter
1/2"
Increments
N/A
Step Depth
N/A
Number of Hole Sizes
1
Shank Diameter
0.25