The 1-5/16 S&D DRILL with 3 flats from Field Tool Supply is engineered for superior drilling performance. This drill bit is specifically designed for use in metalworking applications, featuring a robust construction that ensures durability and precision. The 3 flats design provides a secure grip in the chuck, preventing slippage during operation. With a size of 1-5/16 inches, it is perfect for creating holes in various materials. This drill meets industry standards, making it a reliable choice for professionals seeking efficiency and quality.