Norseman Type 190-AG 1/8 in. Drill Bit 3-Pack features Magnum Super Premium Jobber 135 Split Point Black & Gold drill bits manufactured to NAS 907B specifications from premium hi-molybdenum steel. These drill bits are nitro-carburized to enhance durability and will substantially outperform cobalt drills when working with hardening stainless steel. Please note that the drill bit pictured matches the specifications for this line but may not represent the exact dimensions or shape of this specific bit. For more details, you can consult a store associate or call 330-877-3631.