2PCS Automatic Center Punch Strikes Surface Hammer Spring Loaded Window Breaker

Item description 

• 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