High speed steel twist drill 、High performance-price 、Good machinability 、Play stainless steel and iron
language：English
language：English
High speed steel twist drill 、High performance-price 、Good machinability 、Play stainless steel and iron
High speed steel twist drill material variety（4241,4341，M2，M35）， product variety, high cost performance, good cutting performance, long service life, wear resistant, can be used to attack stainless steel and other materials 1, M2 grinding drill: stainless steel special, can be installed in machine tools, bench drill or flashlight drill chuck for drilling work 2, M7 black yellow diamond: with good toughness, high wear resistance and excellent cutting performance 3,4341 black yellow diamond: sharp head, smooth drilling
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