Professional drill bit set featuring tungsten carbide tips with cobalt for maximum hardness and heat resistance. The unique brazing process withstands temperatures up to 1,800 degrees. Chrome vanadium steel body with extra-wide flutes for efficient chip removal.

• Tungsten carbide tips with cobalt for max hardness and heat resistance
• Negative ground carbide tip bores through multiple materials
• Unique brazing process withstands temperatures up to 1,800 degrees
• Chrome vanadium steel body for durability
• Extra-wide flutes for efficient chip clearing
• Cuts metals, wood, plastics and more
• 21-piece set with indexed storage case

Tip: Use slow speeds and steady pressure when drilling metals. The carbide tips can handle harder materials but benefit from cutting oil to extend life.