4-Flute Ballnose End Mill 11/16" Head Diameter
Product Overview
If you're on the hunt for a dependable and versatile milling tool, the Series 751 4-Flute Ballnose has your back. Designed with precision in mind, it’s crafted to tackle all those slotting, profiling, and contour milling tasks with ease.
This tool is perfect for machinists working with low to medium carbon steels, cast iron, stainless steels that are easy to machine, composites, plastics, and even graphite. Whether you're fine-tuning a prototype or running production, it’s ready to deliver consistent results.
With its four-flute cutting design, you get less tool deflection and a smoother finish. Plus, it balances strength and precision just right. Once you try it, you’ll see why it’s a staple in many shops across the USA.
Key Features
- Precision 4-flute design for improved surface finish
- Ballnose shape ideal for intricate contour milling
- 11/16 inch head diameter perfect for moderate cutting tasks
- 1-1/2 inch length of cut offers versatile reach
- Overall length of 3/4x4 inches for maneuverability
- Thicker core reduces tool deflection for better accuracy
- Suitable for a wide range of materials including steels, cast iron, and composites
- Enhanced chip load distribution to reduce wear
- General-purpose design fits many milling applications
- Durable construction ensures long tool life and reliability
Specifications
- Shape / Type: 4-Flute Ballnose End Mill
- Cut Type: 4-Flute
- Head Diameter: 11/16 inch
- Length of Cut: 1-1/2 inch
- Overall Length: 3/4 x 4 inch
- Material Compatibility: Low to medium carbon steels, cast iron, easy to machine stainless steels, composites, plastics, graphite
- Brand / Manufacturer: Series 751
- Made In: USA
- SKU / Part Number: 121-46278-04
Dependable Milling Solutions Made to Last
Investing in the Series 751 4-Flute Ballnose means you’re getting more than just a tool; you’re securing a partner for consistent, reliable machining. Its robust construction helps minimize downtime by resisting deflection and wear, reducing the frequency of tool changes and adjustments. Over the long haul, that translates into smoother operations and lower maintenance costs—a clear win for busy machine shops that can’t afford interruptions.
Trusted Innovation from a Recognized Leader
Series 751 tools come from a brand known throughout the industry for blending innovation with quality. Meticulously crafted in the USA, these tools reflect decades of expertise, blending durable materials with smart design. Their reputation for dependable performance supports countless metalworking and woodworking professionals, delivering the consistency and precision their industries demand. Choosing this tool means you’re aligning with a trusted name that cares about your craftsmanship and bottom line.
Case Study: Real Business, Real Results
Based in Columbus, Ohio, Precision Metalworks upgraded their milling tools to increase production accuracy.
"Switching to the Series 751 4-Flute Ballnose was a smart move. The durability and precision have noticeably boosted our part quality while cutting down on rework."
Eric Hamilton – Lead Machinist
Output improved by 35%, with a measurable reduction in tool deflection.
Why the Four-Flute Design Makes a Difference
Think of a four-lane highway versus a two-lane road—the four flute cutting edges act like those extra lanes, allowing chips to evacuate while maintaining a smooth cutting rhythm. This design spreads out the work, reducing stress on each cutting edge, which lowers deflection and keeps the tool running true. For you, that means cleaner cuts and longer tool life without having to micromanage every pass.
Installation and Maintenance Guide
Setting It Up
- Check the collet or tool holder for cleanliness before inserting the burr.
- Ensure the shank fits snugly without excessive force.
- Tighten the collet nut firmly but avoid over-tightening to prevent tool damage.
- Verify the tool’s alignment with the machine spindle before operation.
- Start with low RPM, increasing as needed based on material and cut depth.
Keeping It Going
- Regularly clean the tool to remove built-up material and prevent overheating.
- Inspect for signs of wear or chipping before each use.
- Use the recommended speeds and feeds to prevent premature dulling.
- Store in a protective case to avoid damaging the cutting edges.
- Sharpen or replace the tool when performance declines.
Frequently Asked Questions
Q: What materials can the Series 751 4-Flute Ballnose handle?
It’s great for low to medium carbon steels, cast iron, easy-to-machine stainless steels, composites, plastics, and graphite.
Q: Why choose a 4-flute end mill over 2 or 3-flute variants?
Four flutes give a smoother finish and better dimensional accuracy due to thicker core and reduced tool deflection.
Q: What is the head diameter of this tool?
The head diameter is 11/16 inch, ideal for medium precision tasks.
Q: Can I use this tool for deep slotting?
It’s designed more for contour and profile milling, so deep slotting might not be optimal.
Q: What is the overall length and length of cut?
Overall length is 3/4 x 4 inches, with a cut length of 1-1/2 inches.
Q: How should I maintain the tool for long life?
Clean after use, store properly, and monitor cutting conditions to avoid excessive wear.
Q: Is this tool made in the USA?
Yes, the Series 751 is proudly made in the USA.
Q: What kind of machine holders are compatible?
Standard collets and tool holders sized for the 3/4 shank diameter work best.
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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.
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Expert Guidance
Team assists in picking ideal burr for materials.
Ready for Order
Looking to boost your milling precision and efficiency? The Series 751 4-Flute Ballnose is waiting to upgrade your toolkit. Order now and experience the difference tight tolerances and smooth finishes can make.
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