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Hard Alloy Tip Used for Glass Breaking

Publication date:

2026-04-25

Author:

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Hard Alloy Tip Used for Glass Breaking

Tungsten carbide tip is used for glass breaking, mainly relying on its high hardness and high pressure generated by small contact area, to achieve efficient crushing of tempered glass. The following is a summary of key information:
Fragmentation Principle
High hardness: Hard alloys (such as YG6 and YG8) can reach a hardness of HRA89-90, much higher than ordinary steel, and can effectively penetrate the surface of glass. Pressure concentration: The contact area of the top tip is extremely small, generating a great pressure under the same impact force, triggering the stress concentration effect of tempered glass, resulting in the instantaneous spider like fracture of the entire glass

Common application scenarios
Car safety hammer: equipped with a hard alloy tip, used for quick window breaking escape after a car accident
Firefighting/tactical equipment: such as long-distance glass breakers, using hard alloy high drilling glass breaking cones, which can shatter curtain walls or car windows
Tactical pen/multifunctional tool: integrated hard alloy window breaking tip, balancing daily writing and emergency evacuation
Material Properties
Typical grades: YG6, YG8 (tungsten cobalt hard alloy)
Performance advantages:
High hardness (68-71 HRC or HRA89+)
Wear resistant and high bending strength
Good chemical stability, acid and alkali resistance