Geoffrey Less's Blog (126)

Thread Mill Classifications, Terms, Finishes, and More

Thread milling, in contrast to cutting threads with a tap and die, has a number of advantages (see below). But before we can cover these, let’s take a look at some other important relevant information.

Types of Thread Mills

First, there are numerous types of thread mills. Some of the more common types are:

● Straight flute thread mills: These have…


Added by Geoffrey Less on January 30, 2023 at 1:36am — No Comments

What Are the Best End Mills for Aluminum?

Aluminum is a widely used material in machining and is known for being lightweight yet strong. It is also relatively easy to work with, making it a popular choice for many machining applications. However, the type of aluminum alloy and the type of end mill used to cut it can have a significant impact on the quality of the finished product. In this article, we will discuss the different types of aluminum alloys and the best end mills for machining each type.

Aluminum alloys can be…


Added by Geoffrey Less on January 25, 2023 at 7:37am — No Comments

About Stub Drills and Their Uses

Stub drills are a type of cutting tool used for drilling holes in metal and other materials. They are designed for producing holes of small to medium diameters, usually in the range of 0.5mm to 6mm. These drills are often used in applications such as machine shop operations and general-purpose machining.…


Added by Geoffrey Less on January 23, 2023 at 2:15am — No Comments

Thread Mills for Pipe Threading: Common Terms

The following terms and designations are fundamental to understanding thread type, form, and more. The following terms and designations are fundamental to understanding thread type, form, and more. 

● Class of thread: 

An alphanumerical designation indicating a thread’s grade of tolerance or allowance. Common thread classes are categorized under Metric, NPT, UN, and ACME…


Added by Geoffrey Less on December 22, 2022 at 12:54am — No Comments

HSS vs. Solid Carbide Cutting Tools: A Quick Breakdown

In the world of cutting tools, two of the preeminent options for most applications are cutting tools made of HSS, or high-speed steel, and cutting tools made of carbide.

Each of them has advantages and disadvantages, and there are some professionals that will hotly debate the matter of one’s superiority over the other.

Here’s what you should know before you begin looking for…


Added by Geoffrey Less on December 10, 2022 at 2:54am — No Comments

Understanding Machine Chatter: What You Can Do About It

For those of you familiar with CNC-machining, you’ll likely remember it wasn’t long before you came across the term “chatter” in this line of work.

Chatter is a condition that commonly afflicts cutting tools, machines, and workpieces - and it is undesirable, but there are things you can do to prevent it. 

What Is Machine Chatter? 

In the process of…


Added by Geoffrey Less on November 22, 2022 at 3:15am — No Comments

Spot Drills VS Center Drills: When To Use A Spot Drill

While machinists are familiar with spot drills and center drills, the same can't always be said of your everyman and husband looking to either do a fix on some part of the house, or assemble or build a piece of furniture.

That said, it's not that difficult to familiarize yourself with some of the tools and technical terms that machinists are familiar with. In this case, it's the difference between spot drills…


Added by Geoffrey Less on November 14, 2022 at 7:28am — No Comments

7 Advantages of Thread Milling with Solid Carbide Mills

Thread milling with solid carbide mills has numerous advantages over conventional thread milling with high-speed steel, and even more over traditional methods using a tap and die. 

Solid carbide thread mills are extremely hard and offer superior resistance to high heat and wear. They also offer thinner tool diameters and so can be run at higher speeds. Let’s take a look at some of the benefits of using…


Added by Geoffrey Less on November 11, 2022 at 3:12am — No Comments

If You Need to Replace Your Spot Drills, Carbide Should Be Your Top Choice

Before making a plunge cut, many machinists prep their workpiece through a practice called “spotting” to ensure that the finished hole winds up precisely where it’s supposed to. Spotting also helps improve the quality of the finished workpiece.

But what are spot drills used for and what are the best quality spotters made of?

What Are Spot Drills Used…


Added by Geoffrey Less on November 9, 2022 at 2:30am — No Comments

Machining Aluminum: A Few Things You Need to Know

Aluminum is soft, ductile, malleable, and pliable, unlike many other metals that can be hard, brittle, and temperamental. That means aluminum should be easy to machine, right?


Well, it’s not quite that simple. Like machining any other material, aluminum possesses unique qualities that must be understood for success.

Here are a few things you need to…


Added by Geoffrey Less on November 3, 2022 at 9:25am — No Comments

best Spot Drills vs. Center Drills

One of the common queries on the web (related to machining, at least) is “What is the difference between a spot drill and a center drill?”

Since these types of drills are used for similar applications (but not the same) some explanation is warranted.

Let’s take a look at these two different types of drills.

What Is a Spot…


Added by Geoffrey Less on October 31, 2022 at 1:00am — No Comments

Indexable vs. Solid Carbide Thread Mills

When milling threads (as opposed to using a tap and die), machinists often have the option of using either indexable or solid carbide thread mills to complete the job. The best choice will be determined by the unique needs of the application with respect to the flexibility of the tool and the quality of the threads it can produce.

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Here’s what you need to know.



Added by Geoffrey Less on October 20, 2022 at 1:44am — No Comments

3 Tips For Efficient Deep Hole Drilling

When you need to drive deep holes into your piece, there are certain rules you need to follow if you want it to stay true to print. Many elements must be considered in hole-making applications: material, presetting, coolant, chip load, and tool material are among the many factors that will ultimately impact the final product.

Pay Attention To The Chip

Drill performance is often measured…


Added by Geoffrey Less on October 15, 2022 at 5:24am — No Comments

Why Use Carbide Stub Drills When Going Deep?

Increasing the performance of your machining operation not only means doing things faster, but also more accurately. The principle “measure twice, cut once” also applies to drilling through materials. More so because eros errors when cutting costly materials and parts could turn a whole piece into scrap.


When boring through materials, accuracy takes on additional dimensions. Complicated parts with holes from…


Added by Geoffrey Less on October 14, 2022 at 6:57am — No Comments

About Common Coatings on End Mills and Drill Mills for Sale

In machining and milling operations, choosing the proper tool for the job is essential. Choosing an improperly suited tool can result in a poor-quality finished product, premature tool wear, and in extreme cases, catastrophic tool failure (shattering).

As important as it is to choose the right tool, it is also important to choose a mill or drill that has a coating that is appropriate for the machining…


Added by Geoffrey Less on October 11, 2022 at 7:09am — No Comments

It's Important to Find the Best End Mills for Sale

End mills are important tools for machinists, but all tools have to deal with wear and tear. When it comes to replacing end mills, investing in carbide tools is the best option. Cutters made from carbide are able to outlast and outperform steel tools, even those made with high speed steel alloys. If you need new end mills for your shop, take a look at all of the high-quality carbide end mills for sale.…


Added by Geoffrey Less on October 11, 2022 at 5:53am — No Comments

Chattering: What It Is, Why It Happens, and What You Can Do About It

You may have heard it before: a distinctive, loud, almost obnoxious sound while machining: chatter. Or perhaps, if you haven’t heard it, you’ve seen the telltale sign: chatter marks, odd wave-like patterns, and other surface flaws left by vibrating tools.

Both are signs of machine…


Added by Geoffrey Less on October 6, 2022 at 7:36am — No Comments

Machining With Quality Solid Carbide Thread Mills

One of the most common tasks we perform as machinists is adding threaded surfaces to a workpiece. Many shops are accustomed to performing this delicate process with traditional taps and dies. While the method was once thought to be efficient, new technologies have shown to produce better, more accurate, and faster results.

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This is especially true for CNC machining and thread milling. Thread milling with solid…


Added by Geoffrey Less on September 23, 2022 at 12:47am — No Comments

Trust in US Solid Carbide Carbide End Mill Manufacturers

When it comes to cutting tools like end mills, solid carbide options will always outperform other tool materials. If you're looking for the best tools for your machining shop, buying from reputable solid carbide end mills manufacturers will ensure that you're getting tools that are built to last.

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End mills are incredibly useful tools. Many milling applications will necessitate the use of various specialized…


Added by Geoffrey Less on September 14, 2022 at 8:09am — No Comments

On Choosing the Best End Mills for Aluminum

Aluminum is one of the most common metals encountered in machining operations, but choosing the best end mills for aluminum is vital to the success of the project since not all end mills will perform equally.

Take the following factors into consideration when evaluating the fitness of an end mill for a project concerning aluminum.

Why Aluminum?



Added by Geoffrey Less on September 14, 2022 at 7:00am — No Comments

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