To secure the environment, we made one of our main goals, to buy HSS and sort the basic materials for further needs or recycling processes.

HSS are highly alloyed tool steels with different set ups.
The most common tools are drills, endmills, taps, saw blades and reamers.

In addition to high-speed steel, there are a number of other names for this type of steel. For example, high-performance high-speed steel or high-performance (fast) cut steel are derived from the English abbreviation HSS, but high-speed steel is also widespread. Often one or more hyphens are added to the names for better readability.

The designation of HS steels is currently specified in the EN ISO 4957 standard. It consists of the letters HS (after the superseded previous standard DIN 17350: S) and then, separated by a hyphen, the average percentages of the alloy components tungsten (W), molybdenum (Mo), vanadium (V) and cobalt (Co).

High-speed steels are generally divided into four groups(T-Tungsten, M-Molybdenum):

• 2 % T and approx. 1 % M
• 12 % T and approx. 1 % M
• 6 % T and approx. 5 % M
• 18 % T and approx. 9 % M

High speed steels are alloys that gain their properties from either tungsten or molybdenum, often with a combination of the two. They belong to the Fe–C–X multi-component alloy system where X represents chromium, tungsten, molybdenum, vanadium, or cobalt.