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Undercutting End Mills - 270° High Helix

Photo is an illustration of an exemplary tool

Undercutting End Mills - 270 Degree High Helix
Carbide Undercutting End Mills - 270° High Helix

  • High helix for improved performance!
  • 45° helix for faster chip removal and better finish in mild steels and non-ferrous alloys
  • 270° spherical ball
  • Designed for undercutting, deburring and multi-axis machining
  • Center cutting
  • Solid carbide
  • CNC ground in the USA 

     Learn more about the features, benefits, and applications of Harvey Tool Undercutting End Mills.

Jump to Product Reviews

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.

  • AlTiN
  • TiB2
  • Uncoated
CUTTER DIA. LOC NECK DIA. NECK LENGTH FLUTES SHANK DIA. OAL UNCOATED AlTiN COATED TiB2 COATED
D1 +.000"/-.001" L2 +.010"/-.000" L3 +.020"/-.000" D2 L1 TOOL # PRICE TOOL # PRICE TOOL # PRICE
1/16 .053 .037 .093 2 1/8 1-1/2 951162 40.40 951162-C3 44.60 951162-C8 46.60
1/16 .053 .037 .187 2 1/8 1-1/2 966562 41.70 966562-C3 45.90 966562-C8 47.90
1/16 .053 .037 .250 2 1/8 1-1/2 970462 50.90 970462-C3 55.10 970462-C8 57.10
5/64 .067 .045 .125 2 1/8 1-1/2 951178 40.40 951178-C3 44.60 951178-C8 46.60
5/64 .067 .045 .250 2 1/8 1-1/2 966578 41.70 966578-C3 45.90 966578-C8 47.90
5/64 .067 .045 .375 2 1/8 2 970478 50.90 970478-C3 55.10 970478-C8 57.10
3/32 .079 .054 .250 2 1/8 1-1/2 951193 40.40 951193-C3 44.60 951193-C8 46.60
3/32 .079 .054 .375 2 1/8 1-1/2 966593 44.20 966593-C3 48.40 966593-C8 50.40
3/32 .079 .054 .500 2 1/8 2 970493 50.90 970493-C3 55.10 970493-C8 57.10
D1 +.000"/-.002" L2 +.020"/-.000" L3 +.030"/-.000" D2 L1 TOOL # PRICE TOOL # PRICE TOOL # PRICE
1/8 .107 .076 .125 4 1/8 1-1/2 934108 35.40 934108-C3 39.60 934108-C8 41.60
1/8 .107 .076 .250 4 1/8 1-1/2 951208 36.90 951208-C3 41.10 951208-C8 43.10
1/8 .107 .076 .500 4 1/8 1-1/2 994708 40.40 994708-C3 44.60 994708-C8 46.60
1/8 .107 .076 1.000 4 1/8 3 997108 45.70 997108-C3 49.90 997108-C8 51.90
1/8 .107 .076 1.500 4 1/8 3 928808 48.70 928808-C3 52.90 928808-C8 54.90
5/32 .133 .098 .500 4 3/16 2 994710 51.40 994710-C3 55.90 994710-C8 57.60
5/32 .133 .098 1.000 4 3/16 3 997110 58.70 997110-C3 63.20 997110-C8 64.90
3/16 .160 .117 .250 4 3/16 2 951212 45.40 951212-C3 49.90 951212-C8 51.60
3/16 .160 .117 .500 4 3/16 2 994712 49.10 994712-C3 53.60 994712-C8 55.30
3/16 .160 .117 .750 4 3/16 2 897712 51.40 897712-C3 55.90 897712-C8 57.60
3/16 .160 .117 1.000 4 3/16 3 997112 58.70 997112-C3 63.20 997112-C8 64.90
3/16 .160 .117 1.250 4 3/16 3 893512 61.70 893512-C3 66.20 893512-C8 67.90
1/4 .213 .158 .125 4 1/4 2-1/2 934116 63.20 934116-C3 69.40 934116-C8 69.90
1/4 .213 .158 .375 4 1/4 2-1/2 951216 66.10 951216-C3 72.30 951216-C8 72.80
1/4 .213 .158 .750 4 1/4 2-1/2 994716 72.40 994716-C3 78.60 994716-C8 79.10
1/4 .213 .158 1.125 4 1/4 2-1/2 897716 74.50 897716-C3 80.70 897716-C8 81.20
1/4 .213 .158 1.500 4 1/4 4 997116 79.70 997116-C3 86.90 997116-C8 87.20
1/4 .213 .158 2.250 4 1/4 4 928816 88.10 928816-C3 95.30 928816-C8 95.60
5/16 .266 .201 .750 4 5/16 2-1/2 994720 84.10 994720-C3 91.30 994720-C8 98.30
5/16 .266 .201 1.500 4 5/16 4 997120 99.90 997120-C3 108.60 997120-C8 117.10
3/8 .320 .241 .375 4 3/8 2-1/2 951224 94.40 951224-C3 102.60 951224-C8 111.60
3/8 .320 .241 .750 4 3/8 2-1/2 994724 95.40 994724-C3 103.60 994724-C8 112.60
3/8 .320 .241 1.125 4 3/8 4 897724 102.50 897724-C3 113.70 897724-C8 122.70
3/8 .320 .241 1.500 4 3/8 4 997124 105.10 997124-C3 116.30 997124-C8 125.30
1/2 .427 .323 .500 4 1/2 3 951232 134.70 951232-C3 146.90 951232-C8 154.90
1/2 .427 .323 1.000 4 1/2 3 994732 138.10 994732-C3 150.30 994732-C8 158.30
1/2 .427 .323 1.500 4 1/2 6 897732 198.70 897732-C3 210.90 897732-C8 234.90
1/2 .427 .323 2.000 4 1/2 6 997132 203.90 997132-C3 216.10 997132-C8 240.10
1/2 .427 .323 3.000 4 1/2 6 928832 227.50 928832-C3 239.70 928832-C8 263.70

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, Harvey Tool has a team of technical experts available to assist you. Please contact us at 800-645-5609 or tech@harveytool.com.

 

 

270° High Helix - 2 Flute

270° High Helix - 4 Flute

Harvey Tool offers a wide assortment of specialty End Mills in a variety of sizes and lengths of cut. You may find our Advanced Search feature helpful to locate the best stock tool for your application. The Advanced Search allows you to select your critical dimensions to narrow your search. However, if you are looking for a tool that we don’t offer as a standard, we can provide you with a special custom tool. Simply fill out the Request for Quote (RFQ) Template that best represents the tool you need, and submit via email or fax. One of our technical experts will get back to you. If you need help designing your special tool, you can contact our Quotations Department.

Phone - 978-948-8555 ext. 6004 - Ask for our Quotations Department.
RFQ Fax - 978-948-8560
Email - tech@harveytool.com.


Special RFQ - Undercutting End Mills 

Special RFQ - Undercutting End Mills (Mini)

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