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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
1/32 .027 .016 .062 2 1/8 1-1/2 951131 59.70 951131-C3 64.10
1/32 .027 .016 .093 2 1/8 1-1/2 966531 59.70 966531-C3 64.10
.0394 (1 mm) .033 .024 .078 2 1/8 1-1/2 95111M 59.70 95111M-C3 64.10
.0394 (1 mm) .033 .024 .125 2 1/8 1-1/2 96651M 59.70 96651M-C3 64.10
3/64 .040 .029 .093 2 1/8 1-1/2 951147 59.70 951147-C3 64.10
3/64 .040 .029 .156 2 1/8 1-1/2 966547 59.70 966547-C3 64.10
1/16 .053 .037 .093 2 1/8 1-1/2 951162 43.20 951162-C3 47.60 951162-C8 49.80
1/16 .053 .037 .187 2 1/8 1-1/2 966562 44.60 966562-C3 49.00 966562-C8 51.20
1/16 .053 .037 .250 2 1/8 1-1/2 970462 54.50 970462-C3 58.90 970462-C8 61.10
5/64 .067 .045 .125 2 1/8 1-1/2 951178 43.20 951178-C3 47.60 951178-C8 49.80
5/64 .067 .045 .250 2 1/8 1-1/2 966578 44.60 966578-C3 49.00 966578-C8 51.20
5/64 .067 .045 .375 2 1/8 2 970478 54.50 970478-C3 58.90 970478-C8 61.10
3/32 .079 .054 .250 2 1/8 1-1/2 951193 43.20 951193-C3 47.60 951193-C8 49.80
3/32 .079 .054 .375 2 1/8 1-1/2 966593 47.30 966593-C3 51.70 966593-C8 53.90
3/32 .079 .054 .500 2 1/8 2 970493 54.50 970493-C3 58.90 970493-C8 61.10
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 37.90 934108-C3 42.30 934108-C8 44.50
1/8 .107 .076 .250 4 1/8 1-1/2 951208 39.50 951208-C3 43.90 951208-C8 46.10
1/8 .107 .076 .500 4 1/8 1-1/2 994708 43.20 994708-C3 47.60 994708-C8 49.80
1/8 .107 .076 1.000 4 1/8 3 997108 48.90 997108-C3 53.30 997108-C8 55.50
1/8 .107 .076 1.500 4 1/8 3 928808 52.10 928808-C3 56.50 928808-C8 58.70
5/32 .133 .098 .500 4 3/16 2 994710 55.00 994710-C3 59.80 994710-C8 61.60
5/32 .133 .098 1.000 4 3/16 3 997110 62.80 997110-C3 67.60 997110-C8 69.40
3/16 .160 .117 .250 4 3/16 2 951212 48.60 951212-C3 53.40 951212-C8 55.20
3/16 .160 .117 .500 4 3/16 2 994712 52.50 994712-C3 57.30 994712-C8 59.10
3/16 .160 .117 .750 4 3/16 2 897712 55.00 897712-C3 59.80 897712-C8 61.60
3/16 .160 .117 1.000 4 3/16 3 997112 62.80 997112-C3 67.60 997112-C8 69.40
3/16 .160 .117 1.250 4 3/16 3 893512 66.00 893512-C3 70.80 893512-C8 72.60
1/4 .213 .158 .125 4 1/4 2-1/2 934116 67.60 934116-C3 74.20 934116-C8 74.70
1/4 .213 .158 .375 4 1/4 2-1/2 951216 70.70 951216-C3 77.30 951216-C8 77.80
1/4 .213 .158 .750 4 1/4 2-1/2 994716 77.50 994716-C3 84.10 994716-C8 84.60
1/4 .213 .158 1.125 4 1/4 2-1/2 897716 79.70 897716-C3 86.30 897716-C8 86.80
1/4 .213 .158 1.500 4 1/4 4 997116 85.30 997116-C3 92.90 997116-C8 93.20
1/4 .213 .158 2.250 4 1/4 4 928816 94.30 928816-C3 101.90 928816-C8 102.20
5/16 .266 .201 .750 4 5/16 2-1/2 994720 90.00 994720-C3 97.60 994720-C8 105.00
5/16 .266 .201 1.500 4 5/16 4 997120 106.90 997120-C3 116.10 997120-C8 125.10
3/8 .320 .241 .375 4 3/8 2-1/2 951224 101.00 951224-C3 109.70 951224-C8 119.20
3/8 .320 .241 .750 4 3/8 2-1/2 994724 102.10 994724-C3 110.80 994724-C8 120.30
3/8 .320 .241 1.125 4 3/8 4 897724 109.70 897724-C3 121.60 897724-C8 131.10
3/8 .320 .241 1.500 4 3/8 4 997124 112.50 997124-C3 124.40 997124-C8 133.90
1/2 .427 .323 .500 4 1/2 3 951232 144.10 951232-C3 157.00 951232-C8 165.50
1/2 .427 .323 1.000 4 1/2 3 994732 147.80 994732-C3 160.70 994732-C8 169.20
1/2 .427 .323 1.500 4 1/2 6 897732 212.60 897732-C3 225.50 897732-C8 250.90
1/2 .427 .323 2.000 4 1/2 6 997132 218.20 997132-C3 231.10 997132-C8 256.50
1/2 .427 .323 3.000 4 1/2 6 928832 243.40 928832-C3 256.30 928832-C8 281.70

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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