Parts List: 2x Automatic Center Puncher Highlight description: [Adjustable Tension] The automatic center punch has a built-in spring to adjust the tension, and the cover can be adjusted clockwise or counterclockwise to get it just right. [Ergonomic Design] The round head punch provides a sharper tip for more precise placement, and the knurled handle with the central round head ensures a firm fixation, making it does not slide and provides more precise handling and control. [Easy To Use] First, aim the head at a heavy anchor point, press firmly on the handle, then press towards the hole. After pressing the punch, the hole is pressed out by a strong spring. [Durable Material] The automatic center punch is made of brass and stainless steel, which has high strength and durability. Using this automatic centering tool, you can quickly and easily create marks. [Wide Application] Our center punch is suitable for punching positioning holes of steel plate, aluminum, copper, wood board and other materials. In an emergency, it can also be used for cars to break windows. Detailed description: Specification: Product name: Automatic Center Punch Material: brass and stainless steel Color: silver + black Length: 128mm/5 in Chisel type: automatic type Suitable material: metal, wood, glass, etc Function: marker punches for positioning, breaking glass, and emergency survival tool Quantity: 2pcs Note: 1. Please allow 1-3cm measuring deviation due to manual measurement. 2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Adjustable Tension: The automatic center punch has a built-in spring to adjust the tension, and the cover can be adjusted clockwise or counterclockwise to get it just right. Ergonomic Design: The round head punch provides a sharper tip for more precise placement, and the knurled handle with the central round head ensures a firm fixation, making it does not slide and provides more precise handling and control. Easy To Use: First, aim the head at a heavy anchor point, press firmly on the handle, then press towards the hole. After pressing the punch, the hole is pressed out by a strong spring. Durable Material: The automatic center punch is made of brass and stainless steel, which has high strength and durability. Using this automatic centering tool, you can quickly and easily create marks. Wide Application: Our center punch is suitable for punching positioning holes of steel plate, aluminum, copper, wood board and other materials. In an emergency, it can also be used for cars to break windows.