Black and gold surface treated 5/32" HSS Contractor Drill Bit, 3-Flat Shank, Contractor Grade.For use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling.
High speed steel hand taps can be used for making new threads or re-threading damaged threads. Black oxide high-speed steel dill bits are ideal for production, maintenance or portable drilling jobs and are surface treated with abrasion-resistant black oxide. Set contains one High Speed Steel Hand Plug Tap and the matching size.
Heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. The 135 split point is self-centering and reduces thrust. #69 Cobalt Heavy Duty Jobber Length Drill Bit Cobalt jobber drills.Sizes smaller than 1/16” or #52, and larger than 1/2” have the 118° standard point.
These counterbores are made of two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangable, which provides flexibility in the use of the tool.