The Performance Tool W9051 Impact Specialty Bit Set is a versatile 75-piece set that includes the most popular regular and tamper-resistant fastener styles. Made of impact-grade S2 steel, these bits are built to withstand heavy use and high torque applications. The 2-sided flip case features crystal clear lids, making it easy to find the right bit for the job, while the peg hook hanger tab allows for convenient hanging or compact storage. The set includes a 2-1/2" magnetic bit holder and two socket adapters (1/4" and 3/8") to ensure a precise fit and prevent slippage during use. With a wide range of sizes for each type of bit, including Phillips, Pozi, slotted, star, hex, square, and spanner, this set is a comprehensive solution for any job that requires specialty bits.