Strovolt Premium TCT Annular Core Cutter 58mm Diameter x 50mm Depth Tungsten Carbide Tipped Mag Drill Bit Heavy Duty Structural Steel & Inox Cutter
Product Overview
The Strovolt STRO785850 is a heavy-duty industrial Tungsten Carbide Tipped (TCT) Annular Core Cutter engineered for extreme performance in demanding fabrication environments. With a massive 58mm cutting diameter and an extended 50mm cutting depth, this professional core drill bit is designed to bore large, precise holes in the toughest industrial metals—including Stainless Steel, Cast Iron, Hardened Steel, and High-Tensile Structural Steel—significantly faster and more efficiently than traditional twist drills.
Conventional methods for creating 58mm holes typically require a massive radial arm drill, multiple step-drilling processes, and excessive horsepower. The Strovolt TCT Series revolutionizes this workflow by cutting only the periphery of the hole and ejecting a solid slug. This advanced annular geometry reduces power consumption by up to 60%, minimizes wear on your magnetic drilling machine, and delivers a burr-free, reamer-quality finish in a single pass. Featuring Advanced Micro-Grain Carbide Tips, the STRO785850 offers exceptional thermal stability, maintaining its cutting edge even under the high heat generated by large-diameter drilling.
The STRO785850 boasts a Triple-Edge Ply Geometry that utilizes a sophisticated 3-ply tooth arrangement (inner, middle, and outer cutting edges) to evenly distribute chip load. This innovative design reduces cutting resistance, prevents chatter, and ensures smooth penetration in large 58mm bores. The precision-ground 19.05mm (3/4") Weldon Shank (2-flat) ensures a rigid, slip-free connection with all major magnetic drill brands (e.g., Alfra, Hougen, Evolution, Nitto, Euroboor, Rotabroach).
Furthermore, the STRO785850 is capable of running at higher surface speeds (RPM) than High-Speed Steel (HSS) cutters, reducing cycle times and boosting production output. Its self-centering design starts cuts immediately without "walking," eliminating the need for center punching or pilot drilling, saving valuable time and effort.
The Strovolt 58mm x 50mm TCT Cutter is a critical tool for heavy industry, construction, and maintenance sectors. It is essential for creating 58mm holes for large-diameter anchor bolts and tie-rods in heavy I-beams, H-beams, and bridge girders in structural steel fabrication projects. Additionally, it is ideal for drilling bolt patterns in high-pressure flanges and thick-walled pipe vessels in Oil & Gas refineries, as well as for line-boring pivot points and mounting holes on mining excavators, cranes, earthmovers, and railway chassis in heavy equipment repair applications.
The STRO785850 effortlessly cuts through difficult materials like Stainless Steel (INOX), Hardox (Wear Plate), and Railway Track, making it indispensable for hard alloy machining tasks. It is also used in the fabrication of wind turbine towers and hydroelectric plant components in the power generation industry.
Constructed with premium materials, the STRO785850 features cutting tips made from K-Grade Micro-Grain Tungsten Carbide (Sandvik or equivalent), selected for their optimal balance of extreme hardness and impact toughness to resist chipping. The body is constructed from high-strength Heat-Treated Alloy Tool Steel, engineered to absorb high torsional stress and prevent shank breakage under heavy load. The carbide tips are securely bonded to the body using state-of-the-art induction brazing with a high-strength silver alloy, ensuring they remain secure even under extreme thermal shock and vibration. The polished alloy finish with specialized flute geometry assists in rapid chip evacuation.
With its exceptional cutting performance, robust construction, and versatility across various industrial applications, the Strovolt STRO785850 Premium TCT Annular Core Cutter is a must-have tool for any heavy fabrication or maintenance operation demanding precision, efficiency, and durability.
