This drill bit set is made from , which can support lasting use. They have high durability, not easy to deform. Easy to use by the light weight and compact size, widely applied for computer, cable box, to give you better using feeling. Features -Color:As shown -Material:S2 alloy steel -Size:6.00X2.50X0.90cm/2.36X0.98X0.35in - Hole in center of each bit makes it tamper resistant, you can use with peace of mind. - Adopting premium steel materials, this security bit set is , can withstand long term using. - Suitable for electric screwdrivers, manual screwdrivers, electric drills, and pneumatic screwdrivers are and hard, with good workmanship and high precision. - Used in automotive, repair, trucks, cars, engines, motorcycles, interiors, dashboards, computers, cable boxes, toys, appliances, and consumer electronics. - workmanship, high hardness, the tamper proof bit set will not get deformed or broken easily. Package list: 1 x T5 bit 1 x bit 1 x T7 bit 1 x bit 1 x T9 bit 1 x T10 bit 1 x bit 1 x bit 1 x bit 1 x bit 1 x bit 1 x T35 bit 1 x T40 bit 1 x 1/ adapter