A set of 9 boring bars, with tungsten tips brazed onto alloy steel stems with machined 1/2" stems. Various diameters and lengths to cope with a wide variety of jobs. Can be honed with a diamond lapping plate. Perfect for manual lathe use. They can be used in conjunction with the Workshop Boring Bar Holders described elsewhere in this section. Each set contains 9 boring bars ranging in working length from 3/4" to 3" long.