Features 1、Include 6/" automatic center punch (black) and general automatic center punch (yellow). 2、Features adjustable spring loaded design for variable impact strength and hardened tip for long service life. 3、One handed operation, simply adjust to desired spring tension, press firmly against work piece for automatic centre punch. 4、One-handed operation makes accurate marks without the need for a hammer. 5、Manufactured in industrial black and chrome finish with knurled body for extra grip. 6、Can be used for vehicle emergencies as a side window rescue glass breaking tool. Specification The 2pcs automatic center punches are one-handed operation, adjustable spring loaded design, used for pressing firmly against work piece. Features: Include 6" automatic center punch (black) and general automatic center punch (yellow). Features adjustable spring loaded design for variable impact strength and hardened tip for long service life. One handed operation, simply adjust to desired spring tension, press firmly against work piece for automatic centre punch. One-handed operation makes accurate marks without the need for a hammer. Manufactured in industrial black and chrome finish with knurled body for extra grip. Can be used for vehicle emergencies as a side window rescue glass breaking tool. Specifications: Material: Brass + Chrome Vanadium Steel Package Weight: 171g / 6.03ounces Package Size: 155 * 45 * 45mm / 6.1 * 1.77 * 1.77in Packing List: 2 * Automatic Center Punches Package List 2 * Automatic Center Punches