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CraftsmanCapitol™ Premium 4 Flute Straight End Mill Cutter

  • Saving time and no more hassle with your project
  • All orders ship out within 12-24 hours
  • 100% Money-Back Guarantee

Product features:

  • HIGH PROCESSING EFFICIENCY: The edge of end mill bits is HARD and SHARP with TIAIN coating, process the heat treatment materials under 32°with high speed, reduce changing times and improve the production efficiency.
  • CUTTING EDGE DESIGN: The bottom of end mill bits is u-shaped groove design, large front angle effectively reduces cutting resistance, sharp and durable, convenient for chip removal, further improve machining efficiency.
  • APPLICATION: Endmill bits are suitable for side milling, end milling, finish machining, etc. Apply to carbon steel, alloy steel, die steel, tool steel, cast iron, titanium, aluminum, etc.
  • One Set of end mill bits Including: 6 to 8 Different kinds of Size end mills to meet your need in both Metric and Inch
  • STRONG and DURABLE:The end mill bits are made from Ultra-fine tungsten steel bar, with high bending resistance and abrasion resistance, exclusive to HIGH HARDNESS, HIGH-SPEED CUTTING applications.


  • Product Name: End Mill Bits
  • Material: HSS
  • Granularity: 0.6UM
  • HRC: 45 degrees
  • Helix Angle: 30 degrees
  • Flute: 4 Flute End Mill Bits

Sizes Precise:


  • 1/2"x1/2", Cutting Diameter: 1/2", Shank Diameter: 1/2" 
  • 5/16"x5/16", Cutting Diameter: 5/16", Shank Diameter: 5/16" 
  • 3/8"x3/8", Cutting Diameter: 3/8", Shank Diameter: 3/8" 
  • 1/4"x1/4", Cutting Diameter: 1/4", Shank Diameter: 1/4" 
  • 3/16"x1/4", Cutting Diameter: 1/4", Shank Diameter: 3/16" 
  • 1/8"x1/4", Cutting Diameter: 1/4", Shank Diameter: 1/8" 


  • Cutter Diameter: 3MM, 4MM, 5MM, 6MM,  8MM, 10MM, 12MM
  • Shank Diameter: 6MM, 6MM, 6MM, 6MM, 6MM, 8MM, 10MM, 12MM
  • Total Length: 51MM, 52MM, 55MM, 57MM, 57MM, 63MM, 72MM, 83MM


    • End Mill Bits are used for side milling, end milling, finish machining, etc.
    • Apply to wood, steel, stainless steel, alloy steel, carbon steel, die steel, tool steel, cast iron, titanium, aluminum, etc.


    • Before installing the end mill bits, you should first use the cleaning fluid to clean the end mill bits holder and the holder hole, dry them and then install.
    • When the diameter of the end mill bits comes longer, in order to avoid the accidental removal of the end mill bits, it should be used with a flat cut notched handle and the corresponding side locking way to install.
    • If the tool holder is used for a very long time, it will easily cause end mill bits to break off from the tool holder. In this case, replace the new tool holder.


    • Stop immediately in the processing of anomalies when using the end mill bits and find out the reason before processing;
    • Pay attention to the condition of wear and tear of the cutting edge and timely repair the end mill bits;
    • Cleaning the end mill bits and use oil after using, keep end mill bits properly.

        Shipping Notice:

        After 3-5 business days, if your order is not shipped yet, this is because we are preparing the stock due to the high demand for some items. Rest assured your order will be shipped early next week from our warehouse in Chicago, Illinois. 

        If you need more information with your order, don't hesitate to contact us, we are more than happy to help.

        We believe & care about our customers happy. We stand behind our words, take high responsibility on your order, and ensure it arrives on time in the highest quality.


        After placing your order, our efficient Production Team will prepare, pack and ship your order with utmost care within 1-2 business days (in the unlikely event it can take more 3-5 days with high volume items to cause we need time to restock, don't worry, our team is working on it).

        Then this following shipping time will be applied:

        United States:
        USPS Domestic Shipping: 2-5 business days

        Canada, Europe, Australia, New Zealand:
        International Express Shipping: 7-10 business days

        Other Countries:
        International Express Shipping: 10-20 business days

        100% Satisfaction Guarantee

        We offer a 100% Satisfaction Guarantee. We will refund your money if you are not satisfied with your order due to the company's fault. This is to ensure to provide a risk-free shopping experience and make sure that the offer is not taken advantage of.

        In the unlikely event that your order hasn't arrived within 30 days (due to lost mail, etc.) please contact us and we will resend your order or refunds 100% money.