Heavy-Duty Precision Large Twist Drill Bits

The drills are available in sizes ranging from 13.5 mm to 30 mm and from 33/64 in. to 1 in. to meet the demands of a wide range of large drilling tasks. The surfaces are available in a variety of coating options, including bright, black oxide, amber, black gold, titanium, and iridescent, which not only enhances the appearance of the drill bit, but also increases its wear resistance and longevity.

Our drills offer 118-degree and 135-degree split angle tip designs, ensuring precise and accurate drilling results. The ultra-precision machining process of the drill bits ensures accuracy and consistency in every drill, whether it's in metal, wood, plastic or composite materials.

These drills are designed with sensible storage in mind, helping to extend the life of the drill. Each drill set comes with a dedicated bit holder and size index for easy selection and organization. The external portable metal case is easy to store and carry for on-site work.

Our large HSS twist drill bits are designed for efficiency and durability. The use of high-quality HSS processes, in conjunction with the drill, makes the bits both sharp and durable. You can feel the difference in quality with these bits on every drilling job.

The drills are packaged to exacting standards to ensure safe, consistent shipping. Each drill bit is individually packaged in shockproof material and placed inside a sturdy outer box to prevent damage during transportation. To further ensure that our products are in perfect condition, we use reliable logistics partners to ensure that the drill bits reach our customers in a safe and timely manner.