Micro 100 Corner Rounding End Mill CRE-125-025 Double End 0.060 Flute

Description

Product Overview

The Micro 100 CRE‑125‑025 corner rounding end mill is engineered for precision machining of tight radii on a wide range of workpieces. Its double‑ended configuration provides two usable cutting edges in a single tool, effectively doubling productivity and reducing tool changes during complex CNC programs. The cutter measures 2.25 × 0.25 × 0.25 inches and weighs only 0.16 oz, making it lightweight yet rigid enough to maintain dimensional stability under high‑speed operation. The 1/8 inch shank fits standard collet sizes, while the 2 inch overall length (OAL) offers ample reach for deep pocketing and contouring tasks. The tool’s geometry includes a .060 inch flute that delivers smooth chip evacuation, while the .025 inch radius is optimized for creating clean, burr‑free corners. A maximum lead‑in length of .005 inch ensures gentle entry into the material, reducing the risk of surface deformation and extending tool life. These design choices combine to provide reliable performance even in demanding production environments where repeatability and surface quality are critical.

The cutter is fabricated from high‑grade tungsten carbide, a material known for its exceptional hardness and wear resistance. Although the stock version is uncoated, the tool can be ordered with an AlTiN coating that adds lubricity and further extends life when machining abrasive alloys or hardened steels. The carbide composition ensures that the cutting edges retain their sharpness throughout thousands of passes, delivering consistent geometry and minimizing dimensional drift. Thermal conductivity of the carbide helps dissipate heat quickly, allowing higher spindle speeds without compromising tool integrity. This combination of material strength and thermal performance makes the Micro 100 end mill suitable for both prototype development and high‑volume production runs.

Key specifications of the CRE‑125‑025 model include a .060 inch flute diameter, a .025 inch corner radius, and a maximum lead‑in length of .005 inch, which together enable precise material removal with minimal vibration. The 1/8 inch shank diameter provides a solid connection to the machine spindle, reducing deflection during heavy cuts. With an overall length of 2 inches, the tool offers sufficient reach for deep machining while maintaining a compact profile that fits into tight tool holders. The cutter’s weight of just 0.16 ounces contributes to lower inertia, facilitating rapid acceleration and deceleration in dynamic CNC applications. These dimensions are carefully balanced to deliver optimal chip load and surface finish across a variety of substrates, from aluminum alloys to stainless steel.

The Micro 100 corner rounding end mill is compatible with most CNC milling centers that accept standard 1/8 inch shank tools, including popular brands such as Haas, Mazak, and DMG‑Mori. Its double‑ended nature allows programmers to switch between the two cutting edges without changing the tool holder, effectively halving setup time for parts that require multiple corner radii. The tool’s geometry is designed to work with both high‑speed spindle configurations and conventional machining centers, offering flexibility for shops of any size. When paired with appropriate feed rates and coolant strategies, the end mill produces smooth, burr‑free transitions that reduce secondary finishing operations and improve overall part quality.

Usage

Manufacturers in the aerospace sector often need to create precise fillets and radii on structural components such as brackets, wing ribs, and engine housings. The Micro 100 CRE‑125‑025 end mill excels at producing these features with tight tolerances, ensuring that stress concentrations are minimized and aerodynamic performance is maintained. Its ability to cut on radius only eliminates the need for additional deburring steps, saving time and reducing material waste.

In automotive machining, the tool is well suited for shaping engine blocks, transmission housings, and suspension parts where clean corner transitions are essential for both functional integrity and aesthetic appeal. The double‑ended design allows a single setup to address opposite sides of a component, streamlining the workflow on high‑volume production lines. The carbide construction tolerates the high temperatures generated when machining cast iron or hardened steel, delivering consistent results batch after batch.

Tool and die makers benefit from the end mill’s small radius capability when crafting intricate molds, punches, and dies. The .025 inch radius provides enough material removal to define fine details without sacrificing tool strength. Additionally, the uncoated version can be easily re‑sharpened to restore its original geometry, extending the tool’s service life and offering cost‑effective performance for low‑run or custom projects.

For optimal performance, a high‑pressure coolant system delivering a fine mist directly to the cutting zone is recommended. The coolant not only cools the carbide tip but also flushes away chips, preventing them from adhering to the workpiece and causing surface imperfections. When machining aluminum, a water‑based coolant with a low concentration of corrosion inhibitors works well, while oil‑based fluids are preferred for steel and titanium to provide additional lubrication. Adjusting the flow rate to match the spindle speed ensures that the tool remains at a stable temperature, further extending its service life.

Why Choose Us

Micro 100 Tool Corporation has a reputation spanning more than three decades for delivering high‑quality cutting tools that meet the rigorous demands of modern manufacturing. Each end mill undergoes strict quality control procedures, including dimensional inspection and hardness testing, to guarantee that every unit conforms to the specified tolerances. This commitment to precision translates into reliable tool performance and reduced downtime for our customers.

Our production facilities employ advanced CNC grinding and polishing equipment, ensuring that the cutting edges are finished to exacting standards. The double‑ended configuration is manufactured in a single machining operation, which eliminates alignment errors that can occur when assembling separate tools. This integrated approach provides superior balance and rigidity, enhancing stability during high‑speed cutting.

Beyond the product itself, we offer comprehensive technical support and after‑sales service. Our experienced application engineers are available to assist with tool selection, machining parameters, and troubleshooting, helping you achieve optimal results on the first try. With fast shipping and a responsive customer service team, you can rely on Micro 100 for both the tool and the expertise you need to succeed.

Micro 100 is committed to environmentally responsible manufacturing. Our facilities operate under ISO 14001 certification, employing energy‑efficient processes and recycling carbide scrap whenever possible. By choosing our tools, customers benefit from a product that not only delivers high performance but also aligns with sustainability goals and regulatory compliance.

Key Features

• Double‑ended design gives two cutting edges in one tool, cutting setup time in half and increasing productivity on multi‑side parts.
• Precision .060 inch flute and .025 inch radius produce clean, burr‑free corners, reducing the need for secondary deburring operations.
• High‑grade tungsten carbide construction provides excellent wear resistance and maintains sharpness through thousands of cuts, extending tool life.
• Compact 2 inch overall length with 1/8 inch shank offers strong rigidity while fitting into tight tool holders for deep machining.
• Dedicated technical support and rapid replacement service ensure you stay productive, with expert guidance available for any machining challenge.

FAQ

What material is the end mill made from?

The cutter is made from high‑grade tungsten carbide; the standard version is uncoated, but an optional AlTiN coating is available for enhanced wear resistance on abrasive materials.

Can this end mill be used on hardened steel?

Yes, the carbide body can handle hardened steel, especially when paired with the optional AlTiN coating and appropriate cutting speeds. Proper coolant use further improves performance.

What spindle speed range is recommended?

For most aluminum alloys, a spindle speed of 12,000–18,000 rpm works well, while steel applications typically require 8,000–12,000 rpm. Adjust feed rates accordingly to maintain the recommended chip load.

How do I safely change the tool?

Stop the machine, engage the spindle brake, and use a calibrated tool holder or collet to secure the 1/8 inch shank. Verify the tool is seated correctly before restarting the program.

What feed rate should I use with this end mill?

Feed rates depend on material and spindle speed, but a general guideline is 0.001–0.003 inches per tooth (IPT) for aluminum and 0.0005–0.0015 IPT for steel. Calculate the feed by multiplying the IPT by the number of flutes (one) and the spindle RPM.