Specifications: Provides various specifications of knurled batch pressing sleeves, which are suitable for thread batch head of different sizes and are for users to process and repair various thread storage: Can be stacked and stored neatly, saving space, and with signs, which is for users to quickly find the required sleeve size Maintenance personnel: This sleeve is also suitable for maintenance personnel, and it can provide various specifications and efficient tools for both home maintenance and commercial maintenance : 1 / 2inch tool steel knurled batch sleeve is made from tool steel, which has durability and long service life and can withstand high-strength use Efficient: The knurled batch pressing sleeve is reasonably designed and can be used in combination with tools such as electric or manual wrenches to make thread processing more efficient and accurate, Manufacturer: Tsophreniq