The drill bit is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The craftsmanship can serve you well without breaking easily. This is a very practical drill bit . Features -Color:Silver -Material:Steel -Size:4.80X0.60X0.60cm/1.89X0.24X0.24in Hexagonal handle diameter: General Specifications 6.35mm (1/4 ) - suction design, the bit can absorb screw, easy for your work. - High hardness, higher . Hexagonal handle, handle for screwdriver. - Delicate forging, close teething with screws, stable and not easy to slip, efficient to use. - Widely installed onto the pneumatic screwdriver, manual screwdriver, electric drill, electric screwdriver, and etc. - Every detail is carefully crafted, experience the high durability and practicality. Package list: 2 x TS10 bit 2 x TS15 bit 2 x TS20 bit 2 x TS25 bit 2 x bit 2 x TS30 bit 2 x TS40 bit