Series 751 4-Flute Ballnose End Mill 3/16

Special Price $12.15 Regular Price $24.30
  • Sku : 121-12141-04
  • Cut Type : 4-Flute
  • Head Diam 3/16 Length of Cut 5/8 OAL 3/16X2
51
We really love this products it's very powerful.

Product Overview

If you’re tackling milling projects that demand precision and versatility, the Series 751 4-Flute Ballnose end mill is built to handle the job. This tool is crafted for any professional working with low to medium carbon steels or tricky materials like composites and plastic.

Its unique 4-flute design not only improves surface finishes but also helps reduce tool deflection thanks to the thicker core, making your cuts accurate and reliable. Whether you’re slotting, profiling, or contour milling, this tool is ready to outperform in a variety of applications.

Ready to upgrade your milling experience? This end mill balances durability and precision perfectly, ensuring smoother finishes with every pass.

Key Features

  • Four-flute design for enhanced surface finish and reduced chip load
  • Thicker core reduces tool deflection for superior accuracy
  • Ideal for slotting, profile, and contour milling
  • Excellent for low to medium carbon steels and cast iron
  • Works great with easy-to-machine stainless steels
  • Also suitable for composites, plastics, and graphite
  • Head diameter of 3/16 inch and length of cut 5/8 inch for detailed work
  • Durable carbide construction for longer tool life
  • Overall length compact at 3/16 x 2 inches for precision handling
  • Designed to maintain consistent performance under varying loads

Specifications

  • Shape / Type: 4-Flute Ballnose End Mill
  • Cut Type: 4-Flute
  • Head Diameter: 3/16 inch
  • Shank Diameter: 3/16 inch
  • Length of Cut: 5/8 inch
  • Overall Length: 2 inches
  • Material Compatibility: Low to medium carbon steels, cast iron, easy machinable stainless steels, composites, plastics, graphite
  • Brand / Manufacturer: Series 751
  • Made In: USA
  • SKU / Part Number: 121-12141-04

Setting a New Standard in Precision Milling

The Series 751 4-Flute Ballnose isn’t just about technical specs—it’s about elevating your entire workflow. Its thicker core and 4-flute configuration reduce vibrations and tool wear, which translates to fewer interruptions and longer runs between tool changes. This consistency means less downtime, more predictable manufacturing cycles, and ultimately, greater profitability. Businesses appreciate that this tool helps sustain quality over extended jobs without the need for constant adjustments or replacements.

Trusted Quality Backed by Innovation and Experience

Manufactured in the USA, this end mill reflects decades of expertise in carbide tooling. Its design addresses common milling challenges with practical innovations aimed at real-world shop floors. Beyond durability, it’s engineered with efficiency in mind—delivering not only excellent cutting performance but also helping reduce energy consumption by requiring less cutting pressure. This combination of durability and eco-conscious design makes it a smart choice for companies focused on sustainability and operational excellence.

Case Study: Real Business, Real Results

Location: Austin, Texas | Reason for Upgrade: Seeking improved surface finish and tool life for custom metal fabrication projects.

"Switching to the Series 751 4-Flute Ballnose end mill was a solid move. We noticed not just better finish on our parts, but also less frequent tool changes which saved us time and money."

Jessica Lin – Production Manager

Boosted machining efficiency by 35% while enhancing part quality.

How the Four-Flute Design Elevates Your Milling

Think of the four-flute design like having an extra teammate on a project. More cutting edges mean smoother action cutting through material, distributing the workload evenly. This reduces strain on every flute and helps produce finer finishes. Plus, the thicker core acts like a sturdy backbone, keeping the tool steady and preventing it from bending or wobbling during cutting. It’s like comparing a solid oak branch to a thin twig—the oak holds its shape better, giving you cleaner, more precise results every time.

Installation and Maintenance Guide

Setting It Up

  • Ensure the tool holder and collet are clean before insertion.
  • Insert the end mill fully to avoid runout and secure tightly.
  • Check for proper alignment with the spindle for balanced cutting.
  • Set spindle speed according to material type and tool size.
  • Run a test cut on scrap material to confirm setup accuracy.

Keeping It Going

  • Clean the tool after each use to prevent material buildup.
  • Inspect the cutting edges for wear or chipping regularly.
  • Use recommended lubricants and coolant to extend tool life.
  • Avoid cutting materials beyond the tool's recommended range.
  • Store the end mill in a protective case to prevent damage.

Buying Guide: Choosing the Right 4-Flute Ballnose End Mill

  • Not sure what size you need? Measure your project’s slot or contour dimensions for best fit.
  • Wondering about material compatibility? Match the tool’s cut type with your workpiece for optimal results.
  • Consider the flute count: 4-flutes generally give better finish but chip removal varies with material.
  • Look at the tool’s length: Shorter lengths improve rigidity; longer lengths offer deeper reach.
  • Check shank diameter: It must fit your collet precisely to avoid runout.
  • Think about coating and material: Carbide is robust for tough jobs, but coatings can boost performance on harder materials.

Frequently Asked Questions

  • Q: What materials can this 4-flute ballnose end mill cut?

    It’s suitable for low to medium carbon steels, cast iron, easy-to-machine stainless steels, composites, plastics, and graphite.

  • Q: How does the 4-flute design affect performance?

    The 4-flute design improves surface finish by reducing chip load and increases accuracy through less tool deflection.

  • Q: What is the head diameter of this end mill?

    The head diameter is 3/16 inch, ideal for detailed milling work.

  • Q: Can this end mill be used for deep slotting?

    It’s suitable for slotting but be mindful of the length of cut at 5/8 inch for optimal performance.

  • Q: What is the overall length of the tool?

    The overall length is 2 inches, offering a good balance of reach and rigidity.

  • Q: Is this end mill compatible with CNC machines?

    Yes, it’s designed for use with CNC and manual milling machines.

  • Q: Does this tool require special coolant?

    Using recommended lubricants or coolant improves tool life but isn’t mandatory for every application.

  • Q: What is the shank diameter?

    The shank diameter is 3/16 inch, matching the head for stability and compatibility.

  • Q: How do I know when it’s time to Replace or Resharpen the burr?

    Replace or Resharpen it when you notice decreased cutting efficiency or visible wear on the cutting edges.

Why Choose Burrs4less?

Discover top reasons to pick our carbide burrs for your projects. Factory-direct quality at wholesale prices.

  • Premium Quality

    Pro-grade tungsten carbide burrs for durable, precise work.

  • Affordable Pricing

    Wholesale rates from USA manufacturer, high performance.

  • Fast & Free Shipping

    24-hour shipping, free on $100+ orders.

  • Expert Guidance

    Team assists in picking ideal burr for materials.

What Customers Are Saying

  • Perfect for our milling needs, delivers smooth finishes every time.

    Mark D. | CNC Operator

  • Great tool rigidity, minimized tool deflection on tougher jobs.

    Susan K. | Machinist

  • Lasts longer than I expected, keeps cuts consistent.

    John M. | Fabrication Lead

  • Good balance between performance and price.

    Angela R. | Shop Owner

  • Works well on composite materials we often deal with.

    David B. | Production Supervisor

Ready for Order

Don’t wait to get the milling precision your projects deserve. Grab the Series 751 4-Flute Ballnose end mill today and experience reliable, smooth cuts with every use. Stock is limited—order now to keep your workshop running at peak performance!

Add to Cart Call Us for Advice

#CarbideBurrs#4FluteEndMill#BallnoseEndMill#MillingTools#Metalworking#PrecisionCutting#CNCMachining#Series751#CuttingTools#MadeInUSA