Title: High-speed steel
Content:  The main use of high-speed steels continues to be in the manufacture of various cutting tools: drills, taps, milling cutters, tool bits, hobbing (gear) cutters, saw blades, planer and jointer blades, router bits, etc., although usage for punches and dies is increasing. High speed steels also found a market in fine hand tools where their relatively good toughness at high hardness, coupled with high abrasion resistance, made them suitable for low speed applications requiring a durable keen (sharp) edge, such as files, chisels, hand plane blades, and damascus kitchen knives and pocket knives. High speed steel tools are the most popular for use in woodturning, as the speed of movement of the work past the edge is relatively high for handheld tools, and HSS holds its edge far longer than high carbon steel tools can.
Title: Arbor milling
Content:  Although high speed tool steel has been used in the past it is quickly being replaced by carbide, ceramic, or diamond tooling. Because carbide inserts are long lasting and easily replaced, they lend themselves to high production. Ceramic tools are brittle but can withstand high temperatures. This makes high speed machining possible. Diamond tools are used to achieve a superior surface finish (though they can only be used on non-ferrous materials).
Title: High-speed steel
Content:  High-speed steel (HSS or HS) is a subset of tool steels, commonly used as cutting tool material. It is often used in power-saw blades and drill bits. It is superior to the older high-carbon steel tools used extensively through the 1940s in that it can withstand higher temperatures without losing its temper (hardness). This property allows HSS to cut faster than high carbon steel, hence the name high-speed steel. At room temperature, in their generally recommended heat treatment, HSS grades generally display high hardness (above Rockwell hardness 60) and abrasion resistance (generally linked to tungsten and vanadium content often used in HSS) compared with common carbon and tool steels.
Title: Wood shaper
Content:  Tooling refers to cutters, knives, blades, as well as planer blades, and cutter heads. Most blades are made from either a type of tool steel known as high speed steel (HSS), or from carbide. Cutter heads are normally made from either steel or aluminum. High Speed Steel, carbide, aluminium, and steel for the cutter heads all come in a wide variety of grades.
Title: Milling cutter
Content: Material: High speed steel (HSS) cutters are the least-expensive and shortest-lived cutters. Cobalt-bearing high speed steels generally can be run 10% faster than regular high speed steel. Cemented carbide tools are more expensive than steel, but last longer, and can be run much faster, so prove more economical in the long run. HSS tools are perfectly adequate for many applications. The progression from regular HSS to cobalt HSS to carbide could be viewed as very good, even better, and the best. Using high speed spindles may preclude use of HSS entirely. ; Diameter: Larger tools can remove material faster than small ones, therefore the largest possible cutter that will fit in the 
Title: End mill
Content:  high production milling. High speed steel is commonly used when a special tool shape is needed, not usually used for high production processes. Ceramics inserts are typically used in high speed machining with high production. Diamond inserts are typically used on products that require tight tolerances, typically consisting of high surface qualities (nonferrous or nonmetallic materials). In the early 90s, use of coatings to reduce wear and friction (among other things) became more common. Most of these coatings are referred to by their chemical composition, such as: Advances in end mill coatings are being made, however, with coatings such as 
Title: Productivity-improving technologies
Content:  have superior properties for special applications like automobiles, pipelines and drill bits. High speed or tool steels, whose development began in the late 19th century, allowed machine tools to cut steel at much higher speeds. High speed steel and even harder materials were an essential component of mass production of automobiles. Some of the most important specialty materials are steam turbine and gas turbine blades, which have to withstand extreme mechanical stress and high temperatures. The size of blast furnaces grew greatly over the 20th century and innovations like additional heat recovery and pulverized coal, which displaced coke and increased energy efficiency. Bessemer steel became 
Title: Cutting tool material
Content: hardness, hot hardness and pressure resistance ; bending strength and toughness ; inner bonding strength ; wear resistance ; oxidation resistance ; small prosperity to diffusion and adhesion ; abrasion resistance ; edge strength edge strength Tool steels. They are relatively cheap and tough. Their hardness is sufficient to machine other steels. ; Carbon tool steels. They lose their hardness at 200 °C ; High speed steels. They lose their hardness at 600 °C, and are widely used in machining. Due to their ability to retain hardness at higher temperature, higher cutting speeds are possible. ; cemented carbides. Harder than tool steels, but less tough. Can be used up to 900 °C. There are many sort of cemented carbides like ones made of tungsten carbide and cobalt or cermets. ; cutting ceramic. They are even harder than cemented carbides but have lower toughness. Aluminium oxide and silicon 
Title: Tool steel
Content:  The cold-work tool steels include the O series (oil-hardening), the A series (air-hardening), and the D series (high carbon-chromium). These are steels used to cut or form materials that are at low temperatures. This group possesses high hardenability and wear resistance, and average toughness and heat softening resistance. They are used in production of larger parts or parts that require minimal distortion during hardening. The use of oil quenching and air-hardening helps reduce distortion, avoiding the higher stresses caused by the quicker water quenching. More alloying elements are used in these steels, as compared to the water-hardening class. These alloys increase the steels' hardenability, and thus require a less severe quenching process and as a result are less likely to crack. They have high surface hardness and are often used to make knife blades. The machinability of the oil hardening grades is high but for the high carbon-chromium types is low.
Title: High-speed steel
Content:  much higher temperatures than were typically considered desirable in the industry. Their experiments were characterised by a scientific empiricism in that many different combinations were made and tested, with no regard for conventional wisdom or alchemic recipes, and detailed records kept of each batch. The result was a heat treatment process that transformed existing alloys into a new kind of steel that could retain its hardness at higher temperatures, allowing much higher speeds and rate of cutting when machining. The Taylor-White process was patented and created a revolution in machining industries. Heavier machine tools with higher rigidity were needed to use the new steel to its full advantage, prompting redesigns and replacement of installed plant machinery. 

Question: tools made from high-speed tool steel are generally used for what type of machining operations?
Answer: milling.