The gimlet bit is a really outdated layout. The bit is similar fashion as that used in the gimlet, a self-contained tool for monotonous smaller holes in Wooden by hand. Given that about 1850, gimlets have had a number of cutter designs, but some remain generated with the initial Edition. https://drillbitmanufacturer82603.blogunok.com/34472591/not-known-factual-statements-about-drill-bit-manufacturer