Ratio Drills are specialized tools designed for high‑accuracy hole making, particularly in mining and heavy‑duty applications. Their strong break‑point geometry and smooth flute design ensure reliable performance and clean hole finishes.

With tolerance levels achieved within microns, these drills deliver precise flat‑bottom holes from outer diameter to center, eliminating burrs and retract lines. They are built for industries that demand consistent accuracy and durability.

Ideal for machining mining bits and heat‑treatable steels, Ratio Drills combine efficiency with precision, making them a trusted choice for challenging environments.