< - > With 2pcs Powerful 21V Li-ion battery. < - > 1 × Cordless Drill. Made of High-speed steel, these twist drill bits are durable, and they have high abrasion resistance&long service life. [DOUBLE-GR OOVE 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.
