The gimlet little bit is an extremely previous style. The bit is identical type as that Utilized in the gimlet, a self-contained Instrument for uninteresting little holes in wood by hand. Given that about 1850, gimlets have had several different cutter models, but some remain developed with the initial version. https://drill-bit-supplier15826.mdkblog.com/40150922/5-simple-statements-about-drill-bit-explained