Harvey Tool
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3 Flute, Ball

End Mills for Steels, High-Temp Alloys, & Titanium

Photo is an illustration of an exemplary tool

HST-3 | Carbide End Mills

With a comparatively low flute count and Aplus coating, this tool is strong enough to handle steels and other tough materials while offering excellent chip evacuation in slotting, pocketing, and roughing applications.

  • Designed for excellent chip evacuation in slotting, pocketing, and roughing applications
  • Center cutting
  • h6 shank tolerance for high precision tool holders
  • Aplus coated for added lubricity, higher speeds and feeds, and increased wear resistance
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Below are downloadable Simulation Files in DXF format (half-round line drawings) to accompany Harvey Tool products. Each file is specifically scaled to the geometry of the tool to help simulate running parameters and create tool paths. Like our speeds & feeds charts, these files will be continuously updated with the introduction of new products and new catalogs to assist operating the majority of our tools. Simulation files can also be accessed by searching for a specific tool number on the left-hand side of the website and then clicking on the Simulation table in the product table.
Please don’t hesitate to contact our tech team with any questions at 800-645-5609 or tech@harveytool.com.

To navigate between folders or download a file, DOUBLE CLICK on the folder or file.

Cutter Diameter* Shank Diameter Length of Cut Overall Length Flutes Aplus Coated Tool Description
D1 +.000" / -.002" D2 (h6) L2 +.032" / -.000" L1 +.062" / -.062"
1/8 1/8 1/4 1-1/2 3 12017 HST-S-30125-BN
1/8 1/2 2-1/2 3 12032 HST-R-30125-BN
3/16 3/16 5/16 2 3 12062 HST-S-30187-BN
3/16 9/16 2-1/2 3 12077 HST-R-30187-BN
1/4 1/4 3/8 2 3 12107 HST-S-30250-BN
1/4 1/2 2-1/2 3 12112 HST-SR-30250-BN
1/4 3/4 2-1/2 3 12122 HST-R-30250-BN
5/16 5/16 7/16 2 3 12167 HST-S-30312-BN
5/16 13/16 2-1/2 3 12182 HST-R-30312-BN
3/8 3/8 1/2 2 3 12212 HST-S-30375-BN
3/8 1 3 3 12227 HST-R-30375-BN
1/2 1/2 5/8 2-1/2 3 12317 HST-S-30500-BN
1/2 1 3 3 12332 HST-SR-30500-BN
1/2 1-1/4 3 3 12347 HST-R-30500-BN
5/8 5/8 1-1/8 3-1/2 3 12407 HST-SR-30625-BN
3/4 3/4 1 3 3 12467 HST-S-30750-BN
3/4 1-5/8 4 3 12482 HST-R-30750-BN
1 1 1-1/4 4 3 12527 HST-S-31000-BN
1 2 4-1/2 3 12542 HST-R-31000-BN
*.0005 max TIR

Speeds & Feeds


Below you will find downloadable and printer-friendly Speeds & Feeds for this product line. All posted Speed & Feed parameters are suggested starting values that may be increased given optimal setup conditions. If you can't find the information you're looking for, Helical has a team of technical experts available to assist you. Please contact us at 866-543-5422 or quotes@1helical.com.


3 Flute

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