triangular screwdriver bits, easy to suck the screws when using, no damage to the screw and the screwdriver for head for Ideal screwdriver accessory tool for repairing household appliances, instruments, furniture installing Triangular Screwdriver Bits Set, alloy steel, and great wear resistant There are 6 sizes, 1.8 / 2.0 / 2.3 / 2.5 / 2.7 / 3mm, meeting your different needs Suitable for installation in pneumatic screwdrivers, electric screwdriver, rechargeable drill, using the wind batch, Manufacturer: LiRRvb