The #23 Cobalt Jobber Drill by Field Tool Supply is designed for high-performance drilling in demanding materials. Measuring 0.154 inches in diameter, this cobalt steel drill bit offers superior strength and heat resistance, making it suitable for stainless steel and other hard alloys. Its jobber length design allows for deeper penetration, enhancing its versatility in various applications. Compliant with ANSI standards, this drill bit ensures consistent quality and reliability, making it an essential tool for professionals in machining and metalworking.