Features Made of high quality carbon tool steel D1, hardness reach up to HRC65, better wear resistance. The head of the screwdriver has strong magnetic force, and the screw can be sucked during use, which is more efficient to work. The product is heat treated and has a longer service life. The high bite ratio of the screwdriver bit and the screw can reduce the abrasion of the screwdriver bit and prolong the life of the bit. Scope of application: outdoor construction, interior decoration, engineering construction, mechanical maintenance, suitable for installation of various screws. Feature : Made of high quality carbon tool steel D1, hardness reach up to HRC65, better wear resistance. The head of the screwdriver has strong magnetic force, and the screw can be sucked during use, which is more efficient to work. The product is heat treated and has a longer service life. The high bite ratio of the screwdriver bit and the screw can reduce the abrasion of the screwdriver bit and prolong the life of the bit. Scope of application: outdoor construction, interior decoration, engineering construction, mechanical maintenance, suitable for installation of various screws. Specification: Material: Carbon tool steel(D1) Weight: 53g / 1.9oz Type: 65mm / 2.6in, 110mm / 4.3in Quantity: 3pcs; 4pcs(Optional) Package list: 3; 4 * Screwdriver Bit(Optional) Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Package List