Threaded Button bit

Your Professional Threaded Button Bit Manufacturer

A threaded button bit, also known as a long-hole drilling bit or deep-hole percussion bit, is a precision-engineered cutting tool designed specifically for long-hole drilling in underground mining and geotechnical applications. These specialized bits feature tungsten carbide buttons threaded into the bit body, providing superior durability and consistent performance during extended drilling operations. As a leading manufacturer in China with over two decades of expertise, MSD has perfected the design and production of these critical tools. Our expertise ensures every threaded button bit we produce delivers superior penetration rates, extended service life, and exceptional reliability across diverse rock formations and drilling depths.

The Core of Performance: Button Configuration, Blade Geometry, and Steel Quality

The performance of any threaded button bit depends on the synergy between three critical elements. Premium tungsten carbide buttons are the cutting edge—threaded securely into the bit body to prevent loss during extended drilling. Their size, count, and placement determine drilling speed, hole quality, and service life. Blade geometry—specifically the angle and profile of the cutting surface—is engineered to balance penetration rate with hole straightness and bit stability, critical factors in deep holes where deviation risk increases with depth. High-strength alloy steel forms the bit body, carefully hardened to absorb millions of hammer impacts while maintaining precise gauge and bore accuracy. Together, these elements create a drilling bit that reliably transmits hammer energy into rock destruction, maintains hole quality, and survives extended deep-hole operations.

Choosing the Right Series: From R32 Compact to ST68 Large-Scale Deep Drilling

Selecting the correct threaded button bit series and configuration is essential to drilling success and cost optimization. MSD offers 7 comprehensive series—R32, T35, T38, T45, T51, ST58, and ST68—spanning from compact 44mm diameter bits for exploration drilling through massive 152mm+ bits for large-scale production. Each series is engineered with specific button counts and configurations optimized for particular drilling depths, rock hardness, and rig power. Beyond standard bits, we offer specialized variants: Retrac (retracting) bits for secure extraction from deep holes, Reaming bits for hole enlargement and deviation correction, Heavy Duty (HD) bits for extreme rock conditions, and Collaring bits optimized for hole initiation. Blade angles range from 30° to 40°, precisely optimized for each series—shallow angles prioritize hole straightness and stability in extended holes; steeper angles enhance penetration rate in variable formations. Proper series and variant selection directly impacts drilling economics by reducing bit changes, minimizing hole deviations, and optimizing cost per meter.

Why Partner with MSD?

Beyond manufacturing, we provide complete deep-hole drilling solutions. Our engineers analyze your specific drilling objectives—formation geology, hole depth, straightness requirements, and production schedules—to recommend the ideal bit series, variant, button configuration, and blade angle for your application. By optimizing the entire drilling system, we help you achieve the lowest possible cost per meter while maintaining hole quality and preventing expensive deviations. With a massive inventory spanning all 7 series and multiple variants, combined with agile production capability, we ensure your project stays on schedule without delays. MSD delivers OEM-quality threaded button bits at competitive Chinese factory pricing, backed by technical support and proven reliability across 50+ countries. Trust MSD for drilling bits and expert partnership that maximize your deep-hole drilling profitability and project success.