Specification Brand : Haowecib BulletPoint1 : Tip Size: 3/32. BulletPoint2 : Stock Size: 1/4. BulletPoint3 : Stock Shape: Hex. BulletPoint4 : Overall Length: 4. BulletPoint5 : Tip Type: Pointed. ExternallyAssignedProductIdentifier : 9182428393481 ExternallyAssignedProductIdentifier1 : 747216322891 ExternallyAssignedProductIdentifier2 : 0747216322891 ItemName : Automatic Center Drill Hole Tool, Anti-slip Alloy Steel Center Punch for Wood for Aluminum for Iron(black) ItemPackageQuantity : 1 ItemTypeKeyword : hand-tool-center-punches Manufacturer : DefenseGuard Material : Alloy Steel NumberOfItems : 1 PartNumber : Haowecib2um9kx8cv7-01 ProductDescription : Specification: Feature: Made of alloy steel and high-speed steel, it has high hardness and the hardness of the tip is HRC58-65°. Built-in spring, using the force of the spring can achieve automatic punch hole. For high hardness, very thick items, you can make a small hole first, and then it is not easy to when using the electric drill. The of the product is anti-slip, and it is not easy to slip when it is punched. The operation is very simple and can be done with one hand. Suitable for punching work on a variety of materials, such as iron, aluminum, wood, plastic, etc. Specification: Material: Alloy steel+HSS Tip hardness: HRC58-65° Color: Black; Gold(Optional) Length: 130mm / 5.1in Package list: 1 * Center punch Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.