Features: Brand new and high quality Made of durable alloy steel, these screwdriver bit are wear resistant and long lasting. Perfect for tackling various tasks with ease. With their small size and magnetic feature, these screwdriver bit allow for easy operation in narrow space The 25mm bit are designed with a center hole, while the 50mm bit have a full star shape. Upgraded your tool box with this set of high quality screwdriver bit Say goodbye to worn out bit and enjoy efficient and reliable performances. Super magnetic force, strong adsorption, magnetic force to enhancer the screw is not easy to fall and improve work efficiency. Specifications: Material:Alloy Steel Model: T7 T8 T9 T10 T15 T20 T20 T25 T27 T30 T35 T40 Length:Approx.50mm/25mm Package Includes: 26Pcs Screwdriver Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.