.#3 HSS Left Hand Jobber Length Drill Bit Features a left hand helix for screw machine applications where spindles rotate counter-clockwise. Left hand drills can also be used to drill out broken bolts.
27/64" HSS Polished Jobber Length Drill Bit Ideal for production, maintenance or portable drilling jobs.. Bright finish, which provides superior chip evacuation.
Bottom Style: Generate the thread to the bottom of the hole.3125-18 Taper Style: Starts the thread square with the workpiece. Carbon Steel Hand Taps may also be used to thread mild steels..