Made of High-speed steel, these twist drill bits are durable, and they have high abrasion resistance&long service life. 2L+600ml Food Blender Juicer Mixer Crusher Processor Grinder Smoothie 4500W. [DOUBLE-GROOVE DRILL&ROUND SHANK]With the double groove chip removal design, these drill bits can speed up the process of drilling and chip removal.And the round shank is suitable for most types of hand drills and impact drills.
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