Description: To prevent the position of grinding direct from slipping or being removed automatically turning which causes a of the drills, use the automatic center punch tool out to score a point. The self centering punch has an internal spring mechanism which enables them to mark the materials without the use of a hammer, leaving you with a hand to steady the work. The center hole punch is also an excellent tool stored in the car to be used to break the window in an emergency situation. Specifications: Tip Material: High Speed Steel Handle Material: Brass Hardness: HRC58°-65° Length: 127 mm/5 inch Colour: Gold Quantity: 1 Packaging: 1 x Automatic Centre Punch