Step Drills

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Made 100% in Rockford, IL, USA by Ekstrom Carlson using ISO 9001 quality standards and procedures.  Ekstrom Carlson manufactures Carbide and High Speed Steel Step Drills utilizing state of the art 8 axis CNC grinders and inspection equipment to offer better quality cutting tools at better prices.

Custom Dimensioned Step Drill Inquiry Forms

We will make step drills to your dimensional requirements, with our design for material and application.  Click the step drill images to download the inquiry form for each Step Drill type. Or you can download the entire brochure here:

Download the Brochure

step drill inquiry form click image

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Standard counter sink step drills

Ekstrom Carlson standard dimensions, uncoated.  HSS and carbide options.  Contact sales@ekstromcarlson.com or 800-981-8927 with questions, or for custom drill requirements.

82 Deg Counter sink step drills
Screw Size Minor Dia Major Dia Step Length Shank Dia Flute Length Overall Length  HSS P/N HSS Price Carbide P/N Carbide Price
#4 0.116  15/64   3/8  15/64 2  5/8 3  7/8  EH200-100 $20.00 n/a n/a Jobber length
#4 0.116  15/64   3/8  15/64 1  5/16 2  7/16 n/a n/a EC200-100 $30.00
#5 0.128 F Drill, 0.257   3/8 F Drill, 0.257 2  7/8 4  1/8  EH200-110 $20.00 n/a n/a Jobber length
#5 0.128  17/64   3/8  17/64 1  7/16 2  5/8 n/a n/a EC200-110 $30.00
#6 0.142   9/32   1/2   9/32 2 15/16 4  1/4  EH200-120 $33.00 n/a n/a Jobber length
#6 0.142  19/64   1/2  19/64 1  9/16 2  3/4 n/a n/a EC200-120 $45.00
#7 0.155  21/64   1/2  21/64 1 11/16 2 15/16 n/a n/a EC200-125 $45.00
#8 0.169 Q Drill, 0.328   1/2 Q Drill, 0.328 3  7/16 4  3/4  EH200-130 $41.00 n/a n/a Jobber length
#8 0.169  11/32   1/2  11/32 1 11/16 3 n/a n/a EC200-130 $60.00
#9 0.182   3/8   1/2   3/8 1 13/16 3  1/8 n/a n/a EC200-135 $65.00
#10 0.196 W drill, 0.386   5/8 W drill, 0.386 3  3/4 5  1/8  EH200-140 $44.00 n/a n/a Jobber length
#10 0.196  13/32   5/8  13/32 1 15/16 3  5/16 n/a n/a EC200-140 $70.00
  1/4 0.257   1/2  11/16   1/2 4  1/2 6  EH200-150 $55.00 n/a n/a Jobber length
  1/4 0.257   1/2  11/16   1/2 2  1/4 3  3/4 n/a n/a EC200-150 $80.00
  5/16 0.32   5/8   3/4   5/8 5  3/16 7  1/8  EH200-160 $60.00 n/a n/a Jobber length
  5/16 0.32   5/8   3/4   5/8 2  1/2 5 n/a n/a EC200-160 $90.00
  3/8 0.383   3/4   7/8   3/4 3  1/8 5  EH200-170 $65.00 n/a n/a Jobber length
  3/8 0.383   3/4   7/8   3/4 2  1/2 5 n/a n/a EC200-170 $100.00
  7/16 0.446  13/16 1  13/16 3  3/8 5  1/4  EH200-180 $70.00 n/a n/a Jobber length
  7/16 0.446  13/16 1  13/16 2  1/2 5 n/a n/a EC200-180 $110.00
  1/2 0.51   7/8 1   7/8 3  1/2 5  1/2  EH200-190 $75.00 n/a n/a Jobber length
  1/2 0.51   7/8 1   7/8 2  1/2 5 n/a n/a EC200-190 $120.00

**Add $10 for 1/2″ diameter shank to the size 5/16, 3/8, 7/16, and 1/2 HSS options

**These general purpose surface treated drills (black oxide except on the step) are designed with a conventional spiral to perform satisfactorily under as many different conditions as possible.  Coatings are available with a minimum order requirement.

In partnership with KOMET SERVICE®, we are focused on providing high value custom solid carbide and special high speed steel step drills of various styles, for various applications.   We can support customers with the design of special carbide tools. Special step drills with multiple cutting edges and specific geometries, can be configured.   Our custom Ekstrom Carlson – KOMET SERVICE® custom step drills  include:

  • Special drill diameters
  • With or without through coolant
  • With or without coating
  • Inch, metric, or special
  • Special lengths, long, stub, etc…
  • Various styles (straight, Morse, etc..)
  • Special 1-step drills
  • Special 2-step drills
  • Standard 30 degree helix
  • Custom helix designs
  • Corner radius, chamfer, or standard
  • Straight flute available
  • Expedited lead-times
  • ISO 9000 quality
  • Engineered precision
  • Short and long runs
  • KOMET engineering support
  • Carbide or HSS

Custom Tool Manufacturing

We support you with the design of custom carbide step drills.

Quickly configure your specific tool geometries to meet your needs. You can use one of the inquiry forms on this page to receive your personalized quote, or simply complete the contact form below with your question.

No matter what your requirements, we can make a tool that will exceed expectations.

Form Milling Cutter pdf download

step drill inquiry form click image

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Have a question about our Step Drills – Contact us