Manufactured from solid steel base material, this drill bit upholds Miller's tradition of high-quality craftsmanship. The specialized outer coating enhances surface wear resistance while reducing frictional heat generation during drilling operations. Combined with the inherent strength of solid steel construction, it effectively handles drilling applications on hard materials and extends tool lifespan.

The TMT Miller 80mm R32 Solid Steel Drill Bit serves as a core specialized tool for blast furnace taphole opening in steelmaking operations. Designed for use with hydraulic or pneumatic taphole drilling rigs, it specifically drills through taphole clay layers to facilitate the smooth discharge of molten iron and slag.

Our Henglong TMT Miller 80mm R32 Solid Steel Drill Bit meets these rigorous requirements through specialized heat treatment processes that deliver high hardness characteristics and superior resistance to wear and impact at elevated temperatures.