Brand new and high quality Material: High-carbon steel Color: Black Length: . 10cm/3.93 inch Head Size: 1.5mm,2mm,3mm/0.059 inch,0.078 inch,0.11 inch Quantity: 3pcs Use of advances played a small dot on the workpiece, as a marker (such as central or circumferential line when drilling), or other point of the center line position, to facilitate processing. Suitable for proofing hole before steel, aluminum, copper and other materials drilling of drill positioning, to avoid direct drill drilling position deviation will cause slippage or damage to the drill bit. Package Contents: 3x Center punch Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.