American Made Since 1947

Committed to providing industry-best customer service, on-time delivery and bit durability.

ALL Our bits are designed, machined & assembled in the great state of Oklahoma since 1947.

Commitment to Highest Quality Standards
Driven by customers` challenges, we make bits more efficient, valuable and reliable.

Our company
At Throop Rock Bit, we go further to make our bits better, our employees happier, and our customers impressed. Learn more about the work that makes us proud to be part of Throop Rock Bit.

Key facts about Throop Rock Bit

50 States served: Domestic Sales
42 Countries sold: International Sales
10% labor effort: Investments in R&D
2-3 Days: Average production time
Brian Harpster: President
Tonkawa, OK, USA: Headquarters
1947: Founded year
97%: On-time delivery since 2006

Our Company
Throop Rock Bit is an American manufacturing company serving 42 countries around the world.

Certifications
Our facility in Tonkawa, Oklahoma holds the following certifications: ISO 9001 & TS 29001

Our Materials Technology
Our bits are made from advanced steel grades & special alloys for the toughest conditions.

Over 70 years of Innovation
Since its founding in 1947, Throop Rock Bit has been a trusted name in the drilling industry. Learn more about important moments in the history of the company, and how some of them have affected the history of the bit industry.

Throop Rock Bit Downloads

Open Bearing Steel Tooth Tricone Bit Brochure

Sealed Journal Bearing Steel Tooth Tricone Bit Brochure