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Discover the top trends shaping metal cutting bandsaw technology in 2024. Learn how safety, efficiency, and user experience are driving customer preferences

To get the best results from your mill drill machines when milling and drilling metals, you need to use the correct cutting tools for the job. Selecting and fitting the correct milling tool is essential knowledge for setting up your mill drill machine.

Spiral or helical teeth (8) are usually found on plain milling cutters more than 3/4 inch in width. A spiral-tooth milling cutter produces a better and smoother finish with less effort. A plain helical-tooth milling cutter is desirable when milling an uneven surface or one with holes in it.

It is not difficult to make perfect cuts with a high quality metal cutting band saw. Every cutting task is made easier by following the correct sequence of operations to ensure safe, efficient, clean and accurate cutting. Let’s look at how to operate your band saw machine to get the best results possible.

Carbide cutters are better for high precision, but are more brittle than HSS and more easily broken. Cutters can also be made of aluminum or steel with insert teeth made of harder materials to reduce the cost. Some cutters have special hard coatings of polycrystalline diamond (PCD) or cubic boron nitride (CBN) to improve durability.

The illustration shows a standard milling cutter. Most cutters have similar features that are used to describe them. There are six key features:

Some jobs can be done with more than one type of cutter. For example, milling the square end on a shaft or reamer shank can be done with one or two side milling cutters, a fly cutter, or an end milling cutter.

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The cutting edge usually has 5 degrees primary clearance. Sometimes teeth are manufactured with off-set nicks to break up chips and enable coarser feeds.

There are a wide variety of milling cutters available and they come in different materials and sizes. Knowing more about milling cutters will help you make cost-effective decisions when purchasing milling tools for your mill drill.

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Milling cutters are measured using a combination of their diameter and the number of flutes they have. The diameter of a milling cutter is measured from one side of the cutter to the other, passing through the center of the cutter. The number of flutes is the number of cutting edges that are present on the cutter.

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Milling cutters descriptions often include shank type and the type of mounting they use. An end mill might be described as having a “straight shank” or a “weldon shank,” or a face mill might be described as having a “shell mill mounting.”

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Standard milling cutters for your mill drill machine are made of high-speed steel (HSS). Tungsten carbide (TC) is more expensive than HSS, but harder, and used for high performance cutting. HSS can withstand high temperatures, but is not as hard as carbide and does not hold an edge as well or last as long.

Milling cutters are classified by their shape, the orientation of cutting edges, and number of flutes they have. In most cases, cutters are specially designed and named for the job they best used for.

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It doesn’t matter how good your cutting tools are if your mill drill machine is not powerful enough or accurate enough to cut properly with them. Rong Fu are a leading mill drill machine manufacturer, with excellent quality control in manufacturing.

Primary clearance angle (7) is the angle of the land of each tooth measured from a line at right angles to the centerline of the cutter at the cutting edge. This angle prevents each tooth from rubbing against the workpiece after it makes its cut and provides additional clearance for passage of cutting oil and chips.

Milling cutters can also be described by their intended use or the type of workpiece they are designed to cut. For example, a cutter may be described as a “roughing end mill,” a “finishing end mill,”or a “Woodruff cutter.”

Metal cutting band saw blade speed is related to feed rate and feed pressure, and customers often ask how to set up a bandsaw for the best cutting results. We have previously looked at installing and breaking in your metal cutting bandsaw blade, so here we’re going to look at how to get the best results by adjusting cutting speed.

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When sizing a milling cutter for a particular job, it can make the cut in a single pass if it is large enough to span the entire work surface. If this cannot be done, remember a small diameter cutter will pass over a surface in a shorter time than a large diameter cutter moving at the same speed.

In addition to the diameter and the number of flutes, milling cutters are also described by their cutting edge configuration and the material from which they are made. An end mill might be described as a “1/4-inch diameter, 2-flute HSS end mill,” and a ball end mill might be described as a “3/8-inch diameter, 4-flute carbide ball end mill.”

We previously looked at choosing a metal cutting bandsaw blade, installing & adjusting blades, and breaking them in. Now let’s discuss the features of bimetal