Some More on High Speed Drill Bit Sets

High Speed Drill Bit sets require special material. Different materials are used on drill bits, depending on the requisite application. For drilling in wood, metal or plastic, each high speed steel bit is hardened and tempered for long life and high performance in tough applications.

High Speed Drill Bits requires High Speed Steel which is a form of tool steel where the bits are much more resistant to the effect of heat. They can be used to drill in metal, hardwood, and most other materials at greater cutting speeds than carbon steel bits and have largely replaced them in commercial applications.

Cobalt steel alloys are variations on high speed steel which have more cobalt in them. Their main advantage is that they hold their hardness at much higher temperatures, so they are used to drill stainless steel and other hard materials. The main disadvantage of cobalt steels is that they are more brittle than standard HSS.

Tungstaen Carbide material is extremely hard, and can drill in virtually all materials while holding an edge longer than other bits. However, due to its high cost and brittleness, it is more frequently used only in smaller pieces screwed or brazed onto the tip of the bit. Polycrystalline diamond is among the hardest of all tool materials and is therefore extremely wear resistant. The material consists of a layer of diamond particles bonded as a sintered mass to a tungsten carbide support. Bits are fabricated using