What type of drill little bit stays sharp the longest? Drill bits is usually coated with metals to keep them sharper for a longer time, and titanium-coated bits are likely to remain the sharpest. Future, click your title on the correct side(“Sign Now�?, then simply click and drag a signature https://range-of-drill-bits04715.sharebyblog.com/34708179/bulk-drill-bit-things-to-know-before-you-buy