Message to Our Customers

Klein Tools

Model # 59009

Internet # 100662408

Store SKU # 945924

1/4 in. to 1-3/8 in. Step Drill Bit

This item has been discontinued.
The Home Depot no longer carries this specific product.

$59.97 / each



Model # 59009

Internet # 100662408

Store SKU # 945924

The Klein Tools 1/4 in. to 1-3/8 in. Step Drill Bit is made of high-speed steel and features laser-etched hole sizes that are permanent and easy to read. This single-flute cutter works on plastic, wood and most metals, including steel, brass, aluminum and copper.

  • Single-flute cutter for true round holes
  • Requires 1/2 in. chuck
  • Works on plastic, wood and most metals, including steel, brass, aluminum and copper
  • Made of high-speed steel
  • Laser-etched hole sizes are permanent and easy to read
  • Tri-lobe shank for firm grip in drill chuck
  • Includes arbor

Info & Guides

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Bit Diameter 
1 in,1-1/4 in,1-1/8 in,1-3/8 in,1/2 in,1/4 in,3/4 in,3/8 in,5/8 in,7/8 in 
Bit Length (in.) 
Drilling Depth (in) 
Hole Saw Diameter (in) 
Shank Diameter 
3/8 in 
Arbor included 
Bit Material 
High Speed Steel 
Drill Bit Type 
Hole Saw 
Drill Bit Type(s) Included 
Hole Saw 
Material Cut 
Min Chuck Size Required 
1/2 In. 
Pilot Bit Included 
Power Tool Product Type 
Drill & Router Bits 
Shank Style 
Tools Product Type 
Power Tool 


Rated 3.1 out of 5 by 7 reviewers.
Rated 1.0 out of 5.0 by Junk About 6 holes drilled and it burnt out what a waste of money!! June 23, 2015
Rated 1.0 out of 5.0 by Do not buy Worst step drill bit I've ever used! I burn out a battery trying to make a hole with this. If I didn't absolutely need it the day I bought it I would have returned it, now I'm stuck with it :/ May 2, 2015
Rated 4.0 out of 5.0 by Step Bit Great step bit but you must be careful when using on metal as I used it to drill holes in stainless steel. You MUST be patient and drill slowly (low drill rpm) with several breaks to let the metal cool down. Otherwise, you might as well throw your money in the ocean because you will ruin the bit. May 6, 2014
Rated 5.0 out of 5.0 by Cuts smoothly and quickly Nice product. Expensive for a drill bit, but well designed. Falls into the you get what you pay for category April 15, 2014
Rated 1.0 out of 5.0 by Difficult to drill holes larger than 3/8" Due to the different geometry and dept of the grooves the tool rattles and the final hole does not come out round very easy. Compared to what I had used for more than 10 years this drill bit is junk. December 18, 2012
Rated 5.0 out of 5.0 by Must have for electrical and sheet metal work. Saves time without changing drill bits. Stays in my tool box on every job. December 18, 2012
Rated 5.0 out of 5.0 by works great !!!!! WORKED GREAT FOR CUTTING HOLES IN MY 1933 FORD FIBERGLASS BODY . October 16, 2012
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