Medium die: total length approx 5 inches. The punch tool is spring loaded and has an adjustable stroke. Specially designed tapered tip to push objects into drill holes in the same place without slipping. Wide applications: mainly used for positioning before drilling. Suitable for marking wood, plastic, metal, glass and leather surfaces. Prevent drills and screws from running around. Construction: The bearing steel tip has high and uniform hardness, wear resistance and high elasticity limit. Anodic oxide layers on aluminium alloy handle significantly improve hardness, corrosion resistance, wear resistance and protect metal surfaces. Knurled handle: ergonomically designed hand punch. The knurled surface of the case provides a comfortable grip for easy handling and punching control. Used for a variety of applications, such as windows, leather belts, etc.