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…

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…