1.Complete Set for Versatile Applications: This set includes 87 HSS4241 twist drills, 21 masonry drill bits, 4 spade bits, 1 spade bit extension, 17 Brad point drill bits, 4 drill stops, 66 1inch bits, 30 2inch bits, 6 nut drivers, 2 hex keys, 1 counter sink, 4 hole saws, 1 arbor adaptor, 1 nail punch, and 1 bit holder. It provides an extensive range of bit sizes and essential tools for drilling into masonry, wood, metal, plastics, and various screwdriving and fastening tasks. 2.ProfessionalQuality Results: With a wide range of bit sizes and essential tools like drill bits, screws, countersink, and more, our set ensures professionalgrade results for your DIY or home improvement projects. Whether you're a seasoned professional or a DIY enthusiast, this set equips you with the right tools for the job. 3. and : Our drill bits are made of highquality HSS titaniumcoated steel, providing increased hardness, improved heat dissipation, and enhanced wear resistance. Other parts of the set are crafted from highspeed steel known for its exceptional hardness, excellent wear resistance, and durability. You can rely on these tools to deliver reliable performance and withstand repeated use without deformation. 4.Convenient and : The set comes in a sturdy and portable carry case with a convenient handle, allowing for easy transportation and organized storage of all components. No more searching for the right drill bit or accessory everything is neatly organized and readily accessible.