Features: brand new and high quality There are 6 sizes, 1.8/2.0/2.3/2.5/2.7/3mm, meeting your different needs. Magnetic triangular screwdriver bits, easy to suck the screws when using, no damage to the screw and the screwdriver for head. Suitable for installation in pneumatic screwdrivers, electric screwdriver, rechargeable drill, using the wind batch. for Triangle Screwdriver Bits Set, made of S2 alloy steel, durable and great wear resistant. for Ideal screwdriver accessory tool for repairing household appliances, precision instruments, furniture installing. Specifications: Material: S2 Alloy Steel Size: 5cm/ 1.96 in Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 6 Pcs Triangular Screw Bits