What you will get: you will receive 4 pieces of automatic center punches, 2 pieces of 5-inch brass-colored automatic center punches and 2 black 6-inch automatic center hole punches; They are portable and easy to store, and with a beautiful look, so they may be the proper DIY accessories for your family and friends.^ Quality material: the punching tip of the automatic center punch is made of high speed steel (HSS), which has high hardness, durability and wear resistance; The shell of the automatic center punch is finely processed, with deep knurling on the surface, non-slip, not easy to rust, damage or break, and can serve you for a long time.^ Easy to use: 2 types of automatic center punch, you can choose according to your needs; Center punch has an adjustable tension, so you can use it easily with just one hand, and no other tools are needed, just adjust it to the desired spring tension, press it steadily on the work piece, then automatic center punch can performe.^ Safety tool: the automatic manual punching tool with a spring-loaded mechanism is applied in wood, metal and other materials; Before punching, accurate marking and positioning can be carried out without a hammer, non-slip spring loaded punch tools save your time and energy.^ Wide applications: automatic center punch is multi-functional and can be applied in many occasions, suitable for positioning steel, aluminum, iron, PVC, steel, walls, wood, etc., this automatic center punch is not only for wood and metal, but also able to shatter glass, it's practical and versatile.