The most common material used by wood drills internationally is the M2,
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A standard high speed steel material, it is commonly used in the operating
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condition that demand high toughness, in addition, it also has the characteristics
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of good wear resistance and red hardness. Therefore, it is the best material to produce
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wood drills, but the heat treatments including the process of high temperature quench
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and temper are strictly required to ensure various kinds of elements such as Mo,
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W, Co, V and others are contained in the high speed steel to show the features of best
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strength, toughness and wear resistance.
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