Feature: The drill bit is made of high-quality high-speed steel It has high hardness, good wear resistance and long service life. It is equipped with exquisite fabric for easy carrying and preservation. 4 different types of drill bits meet the needs of different tasks. Step drill can be used to drill large holes at one time without replacing the drill bit. The drill bit is made by machine with excellent workmanship. Specification:Material: HSS Weight: 313g / 11.0oz Step drill bit handle: Hex Type of step drill bit: 4-12, 4-20, 4-32 Package list:3 * Step Drill Bit1 * Center drill bitNote:The actual product color may deviate from the photo due to light.There may be a slight deviation in the measurement of product.