HSS milling cutters - precise tools for demanding tasks

The TOSAG range includes milling tools in a wide variety of classes and sizes. Milling cutters differ primarily in terms of their shape and range of tasks. HSS milling cutters are made from a special material. This is particularly hard. The abbreviation HSS stands for High Speed Steel.

Properties and possible applications of HSS milling cutters

HSS milling cutters are primarily designed for working on hard and tough materials. High-speed steel is well suited to machining cast iron or steel, but also mineral materials such as stone. One advantage of HSS milling cutters is their resistance to high temperatures. HSS milling cutters retain their properties at up to 600 degrees Celsius, whereas regular milling cutters made of tool steel are only designed for temperatures of up to 200 degrees Celsius. This allows HSS milling cutters to be used continuously in machine tools and to work at significantly higher cutting speeds.

In addition, the HSS milling cutters are divided into different classes. These can be used to categorize the specific area of application of the milling cutters. For example, HSS CO5 milling cutters and HSS CO8 milling cutters are made from a cobalt alloy. This is particularly hard, making such HSS milling cutters suitable for machining stainless steel, hardened metal with more than 900 N/mm² or copper-zinc alloys.

For some models, a titanium aluminum nitride (TiAIN) coating can be selected as an alternative. These milling cutters are characterized by even higher wear resistance and heat resistance. For this reason, TiAIN milling tools have a longer service life compared to other tools.

There are also HSS milling cutters of type W, HR or NR. This type class further limits the area of application for the respective milling tools. Due to the alloy, coating or shape, these milling tools are adapted to specific applications. Type W milling cutters, for example, are intended for soft, tough and exciting materials. They are used for machining aluminum, copper and light metals, but also for wood or plastic.

Different shapes of milling tools

There are many different versions of HSS milling cutters, each designed for very different tasks. TOSAG offers a wide selection of HSS milling tools so that industry and trade can find the right tools for their own area.

The HR and NR end mills differ, for example, in their roughing teeth. While the NR milling cutters have a coarse roughing cut, the HR milling cut ters have a fine roughing cut.

In terms of machining technology, a distinction is made between roughing and finishing cutters. Finishing cutters have cutting edges and rake faces without profiling. They usually work at a low feed rate and high speed at the same time. The milled surfaces produced are therefore particularly smooth. For this reason, the finishing cutters also have very sharp cutting edges. With finishing cutters, climb milling with CNC machines is possible.

T-slot milling cutters are specially designed for the production of T-slots. The underside of a pre-milled groove is extended with the T-slot cutter. The angle cutters work according to a similar principle. They create guides as required in toolmaking or mechanical engineering. Angle cutters are available in a range with angles from 45 to 85 degrees.

Slot milling cutters are used to create slots for woodruff keyways. TOSAG also offers a wide range of slot milling cutters, which differ in terms of both width and diameter. The slot cutters can therefore be used to create a wide variety of recesses for Woodruff keyways.

The end mills with ball end have a rounded head. This means that the milling surfaces created with the ball end are also rounded. The ball nose is used for roughing tasks in tool and mold making. Here, surfaces or inner radii are created or the milling cutter with spherical head is used for plunging.

Radial milling cutters are in a class of their own. They do not belong to the category of end mills, like the previous milling tools. These milling cutters have a concave cutting edge shape and create transitions and radii on edges or grooves. TOSAG also offers a large selection of different diameters and radii for radial milling cutters.