Featuring a 1 / 4 " hexagonal shank design, these bit provide broad compatibility with various impacts screwdriver, while the clear marking allow for quick and easy selection from H1.5 to H10 size The design enhances screw retention, improving work efficiency, and the included portable case ensures storage and transport, any loss of bit This 9piece hexagonal head allen wrenches drill bit set exceptionally durability and wear resistance, ensuring long lastingly for all your repair needs Ideal for professional technicians and DIYer enthusiasts alike, this set is perfect for anyone seek efficient and reliabled tool for their repair tasks Whether you ' re assembling furniture, repairing appliances, or maintaining vehicles like car and motorcycles, this drill bit set is essential addition to your toolkit, Manufacturer: GAOINTELL