Our carbide drill bits are manufactured from ultra-fine grain type tungsten carbide, one of the strongest materials in the world, making them ideal in drilling and machining hard materials and metals that ordinary drill bits cannot get through.

They are perfect for drilling wood with hidden nails, cast iron, non-ferrous heavy metals, and abrasive materials.

Tungsten carbide is a super strong metal alloy, formed from combining carbon with tungsten, a heavy metal with both the highest melting point on Earth and the highest tensile strength of any metal. This combination produces an unbelievably durable alloy that is challenged only by polycrystalline diamond (PCD) in terms of strength for crafting end mills, drill bits, and tool tips.

Because tungsten has the highest melting point of any heavy metal on earth, tungsten carbide is unbelievably heat resistant.

This means that carbide drill bits can operate under high temperatures efficiently making them suitable for high-speed applications. Tipped drill bits can be used in drilling shallow holes, but full carbide drill bits are preferred in deeper drilling.

Carbide drills are available with or without coolant bores, which allow coolant to be fed through to the drill bit during operation, reducing friction and increasing efficiency by lubricating the tool and work surfaces.

This facilitates easier operation and reduces heat build-up, and prevents chips welding to the cutting edges. Overheating will shorten the life of the drill.

At Prima Tooling our carbide drill bits are coated; either in Aluminium Chromium Nitride (AlCrN), a titanium-free coating used for broad applications including drilling steel, cast iron, and hard materials, or HELICA, an AlCrN-based coating more suitable for drilling stainless steel, non-ferrous materials, titanium, and super alloys.

Sutton Tools Black Magic XL Series carbide drills are designed to reduce operation times in demanding deep drilling while being able to tackle the hardest materials, metals, and super alloys.

Internal coolant allows large material removal rate using high cutting speeds while temperatures are kept down, preventing overheating, and extending operating lifespan. Specifically designed flutes ensure fast short chip evacuations eliminate the risk of jamming.

For more information on the ranges and models of carbide drills we have in stock, check out our engineering tooling catalogues, or get in touch with Prima Tooling today!