IndexableThread Mill

We can offer three wrap-angle options, and a variety of sizes ranging from .020″ to 1.000,” including fractional, decimal and metric sizes. We’re also happy to work with you to create four different styles of undercutting end mill: – standard shank – reduced shank – high helix (for these, the 270 degree spherical ball with 45 degree helix gives you faster chip removal and better finish in mild steels and non-ferrous alloys) – deburring undercut (in these, the 270 degree spherical ball allows you to deburr in your CNC machine with high precision burrs held to end mill tolerances)

Besides milling an undercut feature on a part, which is typically very difficult with a standard end mill, these tools are also capable of a few other operations, including undercutting, deburring, slotting, contouring and profiling. Using an undercutting end mill to deburr in your machine is an excellent way to save time and effort. Some slotting and contouring operations, especially during 5-axis milling, are also made far easier with these tools. In some situations, clearance challenges make them an absolute necessity.

Single point thread millprice

Undercutting end mills can be made center-cutting if needed, and come with solid carbide construction for maximum rigidity. They can also be optimized to handle hard steels (45-68 Rockwell). Choosing a mill with a reduced shank will allow for any chucking depth. Recent advances in CAM software has had tremendous benefits for machinists performing contouring applications.

www.harveytool.com www.helicaltool.com www.micro100.com www.titancuttingtools.com www.corehog.com www.valorholemaking.com

55 degreeThread mill

Undercutting end mills are also known as lollipop mills, spherical ball end mills, cherry ball cutters, and variations such as clearance or clearance ball cutters. Basically…you can invent your own name! They are well rounded tools that offer maximum versatility. In fact, we cannot overstate the versatility this tool can provides for your shop.

Similar to the standard single form, Harvey Tool’s thread mills for hardened steels offer machinists a quality option when dealing with hardened steels from 46-68 Rc. The following unique geometries helps this tool machine tough alloys:

Coolant-Through Multi Form Thread Mills are the perfect tool for when a job calls for thread milling in a blind hole. The coolant through ability of the tool produces superior chip evacuation. These tools also improve coolant flow to the workpiece – delivering it directly from the tip of the tool – for decreased friction and high cutting speeds.

Single pointAcmeThread Mill

Our multi-form thread mills are offered in styles such as UN, NPT, and Metric. Multi-Form tools are optimized to produce a full thread in single helical interpolation. Additionally, they allow a machinist to quickly turn around production-style jobs.

Tri-Forms are designed for difficult-to-machine materials. The tri-form design reduces tool pressure and deflection, which results in more accurate threading. Its left-hand cut, left-hand spiral design allows it to climb mill from the top of the thread to the bottom.

MetricSingle point Thread Mill

While it may seem obvious, N.P.T. Multi-Form Thread Mills are perfect for milling NPT threads. NPT threads are great for when a part requires a full seal, different from traditional threads that hold pieces together without the water-tight seal.

Thread millChart

Do you know the key differences between a Single Form Thread Mill and a Multi-Form version? Do you know which tooling option is best for your job? This blog post examines how several factors, including the tool’s form and max depth of thread, are important to ultimately making the appropriate Harvey Tool decision.

Sign up to receive a monthly recap of: – The latest machining solutions – Machining tips and tricks – A recap of our most popular posts

The single form thread mill is the most versatile threading solution Harvey Tool offers. These tools are ground to a sharp point and are capable of milling 60° thread styles, such as UN, metric, and NPT threads. With over 14 UN and 10 Metric sized tools, Harvey Tool’s single form selections allow machinists the opportunity to machine many different types of threads.

A key difference between the standard Single Form and the Single Form for Hardened Steels is that the tools for hardened steels are actually only capable of milling 83% of the actual thread depth. At first, this may seem detrimental to your operation. However, according to the Machinery’s Handbook 29th Edition, “Tests have shown that any increase in the percentage of full thread over 60% does not significantly increase the strength of the thread. Often, a 55% to 60% thread is satisfactory, although 75% threads are commonly used to provide an extra margin of safety.” With the ability to preserve tool life and effectively perform thread components, Harvey Tool’s single form thread mills for hardened steels are a natural choice when tackling a hardened material.

These tools are great when a job calls for a deep thread, due to their long flute. Long Flutes also have a large cutter diameter and core, which provides the tool with improved tool strength and stability.

At Aronson-Campbell Custom Grinding, we want to create the tool that can match whatever your job demands. Use our handy order form to get started with customizing your undercutting end mill, or contact us with any questions you may have.