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| If the rock you're
drilling exceeds 20,000 psi compressive strength, you need this bit! The Rockbuster is a
unique design to Winger Machine & Tool combining three distinctly different face angles with a special grade
of carbide, a special grade of steel, and with special engineered chipways in its face.
All these together make a hard-rock drilling bit second to none. The Winger Rockbuster, your first and last choice for hard rock drilling! Try Winger's unique Rockbuster bits from 4 1/2" to 28 " in diameter! |
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