【10 Pcs Screwdriver Set】The kit contains a set of T6, T7, T8, T10, T15, T20, T25, T27, T30, T40 drill bits with a length of 75mm, which can meet your different needs.【High Quality Alloy Steel Material】The use of high quality alloy metal materials, impact resistance, toughness, very wear-resistant and not easy to rust, can be used for a long time. The smooth surface does not damage the screwdriver or the screwdriver head and can be used for high-precision maintenance work.【Drill Bits with Holes】Hexagon screwdriver bit, each bit has a hole of the corresponding size that can fix screws and nuts. The surface of each drill bit has a clear specification text that allows you to choose the desired drill bit and save time.【Inner Angle Wrench】 The kit includes a black 1/4" Allen key with two ends for use with a screwdriver head that can be used as a practical screwdriver. Non-slip surface and easy to use. It has two heads, one is a straight head and the other is a right-angle head that is