Strovolt Premium TCT Annular Core Cutter 55mm Diameter x 50mm Depth Tungsten Carbide Tipped Mag Drill Bit Heavy Duty Structural Steel & Inox Cutter
Product Overview
The Strovolt STRO785550 is a heavy-duty, industrial-grade TCT (Tungsten Carbide Tipped) Annular Core Cutter engineered for extreme performance in demanding fabrication environments. With a substantial 55mm 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 55mm 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 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 STRO785550 offers exceptional thermal stability, maintaining its cutting edge even under the high heat generated by large-diameter drilling.
Engineered with a Triple-Edge Ply Geometry, this cutter utilizes a sophisticated 3-ply tooth arrangement (inner, middle, and outer cutting edges) to evenly distribute chip load. This design reduces cutting resistance, prevents chatter, and ensures smooth penetration in large 55mm bores. The precision-ground 19.05mm (3/4") Weldon Shank (2-flat) ensures a rigid, slip-free connection with all major magnetic drill brands, including Alfra, Hougen, Evolution, Nitto, Euroboor, and Rotabroach.
Capable of running at higher surface speeds (RPM) than High-Speed Steel (HSS) cutters, the STRO785550 significantly reduces cycle times and boosts production output. Its self-centering design starts cuts immediately without "walking," eliminating the need for center punching or pilot drilling, further streamlining the drilling process.
The Strovolt 55mm x 50mm TCT Cutter is an essential tool for heavy industry, construction, and maintenance sectors. It excels in structural steel fabrication, creating 55mm holes for large-diameter anchor bolts and tie-rods in heavy I-beams, H-beams, and bridge girders. It's also ideal for drilling bolt patterns in high-pressure flanges and thick-walled pipe vessels in Oil & Gas refineries, as well as line-boring pivot points and mounting holes on mining excavators, cranes, earthmovers, and railway chassis. This versatile cutter effortlessly machines through difficult materials like Stainless Steel (INOX), Hardox (Wear Plate), and Railway Track, making it invaluable in Power Generation for fabricating wind turbine towers and hydroelectric plant components.
Constructed with premium materials, the STRO785550 features K-Grade Micro-Grain Tungsten Carbide tips from Sandvik or equivalent suppliers, selected for their optimal balance of extreme hardness and impact toughness to resist chipping. The high-strength Heat-Treated Alloy Tool Steel body is engineered to absorb high torsional stress and prevent shank breakage under heavy load. State-of-the-art induction brazing using a high-strength silver alloy ensures the carbide tips remain secure even under extreme thermal shock and vibration. The polished alloy finish with specialized flute geometry assists in rapid chip evacuation, further enhancing performance and tool life.
With its exceptional cutting capabilities, robust construction, and time-saving features, the Strovolt STRO785550 Premium TCT Annular Core Cutter is a game-changer for metalworking professionals seeking to maximize productivity and efficiency in demanding industrial applications.
