The gimlet bit is a really aged style. The bit is identical type as that Utilized in the gimlet, a self-contained Instrument for boring modest holes in wood by hand. Since about 1850, gimlets have experienced a range of cutter types, but some are still created with the first Model. https://zionthwky.yomoblog.com/40908392/5-easy-facts-about-drill-bit-manufacturer-described