Center Punch with Blue Caps: Made of high speed steel, resistant to heavy impact, wear-resistant and rust-resistant to extend the life of the punch. Hardness of high speed steel: HRC58 ~ 60. The center punch cap is made of rigid ABS engineering plastic. The blue adjustable impact cap can be increased or decreased. The hole punch body has a deep knurled handle for easy handling and improved one-handed control. User Guide: Use the heavy head to mark the center of a hole you want to create . Press the handle firmly and press in the direction of the punch. After pressing the punch into the shank for a short time, the strong spring will forcefully eject the punch. Center punch with red caps: The punch shank body is made of chrome-plated steel for strength and maximum longevity, which allows high impact force and resists corrosion; Spring-loaded loading center. Unique design: non-slip knurled surface on spring-loaded rod allows comfortable working and reduces user fatigue. Precision centered tip increases control for more precise holes. Wide Application: The automatic center hole punch is suitable for a variety of tasks, such as paneling on materials, glass window breaking , the awl for the belt, the marking on the wall and so on. The spring-loaded tool walks your workpiece with a hollow to give you a starting point that prevents screws and drill bits from moving; use this automatic punch for metal, wood, glass, canvas, plastic and leather. Automatic center punch with red cap: Material: chrome steel p> Color: Silver/Red Product dimensions: 133 mm. Automatic center punch with blue cap: Material: high speed steel. Color: silver/blue. Product dimensions: 133 mm. Features: The center punch is made of high speed steel, the durable punch body can withstand strong impact force and resist corrosion. Suitable for DIY, home and general building. The punch body has a deep knurled handle for easy handling and better control. The center metal cushion cap is made of rigid ABS engineering plastic, the adjustable shock cap makes a good cushion for your hand against spring impact. Ideal for marking, punching, poking and scribble on wood, metal, glass, plastic, leather, fiberboard, particle board, plywood, aluminum board or wall surface, etc. Contents: 2 x automatic center punch with red cap. luckymeet