[ADJUSTMENT] Rotate the tail of the automatic center punch to stretch or contract the internal spring, thereby adjusting the shock resistance.[DURABILITY] The automatic center punch pin is made of hard alloy with a hardness of 58-62 degrees, wear resistance, impact resistance and long service life.[WIDELY USED] The automatic center punch is suitable for various fields, such as marking on materials (sheet metal, wood, wall), car emergency tools (instead of escape hammer), etc.[NON-SLIP DESIGN] The automatic center punch adopts diamond texture and non-slip design. The shell is made of pure copper. It is beautiful and practical. It is used for a long time without rust.[HOW TO USE] Positioning the thimble, grasp the handle and press hard in the direction of punching. When the thimble is pressed into the handle, the \"DUANG\" sounds and the internal spring ejects the thimble, it can be completed.Color: GoldMaterial: Hard alloySize: 130mmPackage Contents:1x automatic center punchOnly the above package content, other products are not included.Note: Light shooting 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 +/- 1-3 cm.