hardware tools series 9-pack allen wrench types (flat head/ball head/plum blossom) for their own purposes

Hardware Tool Series, 9-piece set, internal hex wrench types (flat head, ball head, star head). Describe their respective uses. The same series offers three lengths: long, medium, and short. The set sizes vary. This product showcase focuses on internal hex/star head wrenches—each set includes all three length options for easy comparison of size differences. Black-orange color plastic packaging indicates the material is chromium-vanadium steel. It contains three different types of wrenches: on the left is a star head internal hex wrench, in the middle is a standard flat head internal hex wrench, and on the right is a ball head internal hex wrench. All have long/medium/short versions. Variety, large quantity, best price. New and existing customers are welcome to place orders. Contact information: 0579-8518 4217.1896600853. WeChat number is the same.