Harvey Tool
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3 Flute, Corner Radius

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

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 Corner Radius Length of Cut Overall Length Flutes Aplus Coated Tool Description
D1 +.000" / -.002" D2 (h6) R +.002" / -.002" L2 +.032" / -.000" L1 +.062" / -.062"
1/8 1/8 .010 1/4 1-1/2 3 08017 HST-S-30125-R.010
1/8 .010 1/2 2-1/2 3 08032 HST-R-30125-R.010
3/16 3/16 .010 5/16 2 3 08062 HST-S-30187-R.010
3/16 .010 9/16 2-1/2 3 08077 HST-R-30187-R.010
1/4 1/4 .020 3/8 2 3 08107 HST-S-30250-R.020
1/4 .020 1/2 2-1/2 3 08112 HST-SR-30250-R.020
1/4 .020 3/4 2-1/2 3 08122 HST-R-30250-R.020
1/4 .020 1 3 3 08137 HST-M-30250-R.020
5/16 5/16 .020 7/16 2 3 08167 HST-S-30312-R.020
5/16 .020 13/16 2-1/2 3 08182 HST-R-30312-R.020
5/16 .020 1-1/4 3 3 08192 HST-M-30312-R.020
3/8 3/8 .020 1/2 2 3 08212 HST-S-30375-R.020
3/8 .020 1 3 3 08227 HST-R-30375-R.020
3/8 .020 1-1/4 3 3 08242 HST-M-30375-R.020
1/2 1/2 .030 5/8 2-1/2 3 08317 HST-S-30500-R.030
1/2 .030 1 3 3 08332 HST-SR-30500-R.030
1/2 .030 1-1/4 3 3 08347 HST-R-30500-R.030
1/2 .030 1-5/8 4 3 08362 HST-M-30500-R.030
5/8 5/8 .030 3/4 3 3 08392 HST-S-30625-R.030
5/8 .030 1-1/8 3-1/2 3 08407 HST-SR-30625-R.030
5/8 .030 1-5/8 4 3 08422 HST-R-30625-R.030
5/8 .030 2-1/8 4 3 08437 HST-M-30625-R.030
3/4 3/4 .030 1 3 3 08467 HST-S-30750-R.030
3/4 .030 1-5/8 4 3 08482 HST-R-30750-R.030
3/4 .030 2-1/4 5 3 08497 HST-M-30750-R.030
1 1 .030 1-1/4 4 3 08527 HST-S-31000-R.030
1 .030 2 4-1/2 3 08542 HST-R-31000-R.030
1 .030 2-5/8 6 3 08557 HST-M-31000-R.030
* .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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