DIN338 Hss Straight Shank Twist Drill Bit For Metal Wood
Fully ground A3K7 process, the raw materials are made of industrial-grade high-hardness 99 refining-grade high speed steel, which is stronger and more durable.
Manufacturing standard: DIN338, KL67.3L17, the drill has high surface finish, no surface black carbon layer, smooth cutting and high drilling efficiency.
It is used for drilling and processing of steels with different hardness (such as rail steel, stainless steel, spring steel, etc.) such as various machines and CNC machine tool platforms, and the precision is within 0.02 wire.