The pilot drill allows simple centering and clean guidance in the material. With the ejector spring, as the name suggests, the cut material is ejected from the hole saw.

The diameters of our hole saws, depending on the model, start at 12 mm and go up to 210 mm for bi-metal hole saws. You can find out more about bi-metal hole saws in our article "Bi-metal hole saws and its applications".

The TC multigrade hole saw MHS has a higher cutting depth, however, from a certain diameter they can only be used with core and column drills.

HSS and tungsten carbide hole saws are ideally suitable for metal cutting. You can use the shallow cut to cut steel up to 4.0 mm thick. For alloyed and unalloyed steels, the MHS can even cut to depths of up to 20.0 mm. HSS and TC hole saws are also ideally suited for use in aluminium and plastics.

Note: When drilling with the hole saw, it is important to observe the corresponding speed table. There are different speed tables for tungsten carbide hole saws and HSS and bi-metal hole saws.

The main body, however, consists of a different tool steel and the cutting edges are soldered to the main body. The large cutting edges ensure a rather coarse cut quality.

Our complete range of hole saws including accessories such as ejector spring and arbor holders can be found under Products > Hole saws.

Since tool steel HSS (high-speed steel) is softer than tungsten carbide, the areas of application are divided as follows:

The tungsten carbide hole saws shallow cut have a low cutting depth and are well suited for use with hand drills, as only a lower force is required here. Their cutting depth is limited.

The great thing about the hole saw is that it is hollow in the middle and only the cutting edges cut the material (and therefore not the complete material).

The HSS and tungsten carbide hole saws are equipped with pilot drills and optionally with an ejector spring . Additionally, there are different arbor holders for the corresponding drill chuck.

There are hole saws in different variations: HSS, tungsten carbide and bi-metal hole saws. In this article we take a closer look at the properties of HSS and tungsten carbide hole saws.

Above a certain diameter size, drill holes can no longer be drilled with the twist drill, as the amount of material to be cut would be too large and the drilling process would take extremely long.

When cutting steel or metal, make sure you are using the correct number of revolutions per minute (rpm). In the speed table for HSS and TC hole saws you will find the proper speeds.