Strovolt Premium TCT Annular Core Cutter 47mm Diameter x 50mm Depth Tungsten Carbide Tipped Mag Drill Bit Heavy Duty Structural Steel Cutter
Product Overview
The Strovolt STRO784750 is a professional-grade 47mm Tungsten Carbide Tipped (TCT) Annular Core Cutter engineered for high-performance drilling in heavy industrial environments. This heavy-duty structural steel cutter is designed to bore clean, large-diameter holes through tough metals, including Stainless Steel, Cast Iron, Hardened Steel, and exotic alloys.
With a substantial 47mm cutting diameter and an extended 50mm cutting depth, the STRO784750 TCT Annular Cutter revolutionizes the drilling process by cutting only the periphery of the hole and ejecting a solid slug. This innovative geometry reduces energy consumption, minimizes wear on your magnetic drill, and delivers a burr-free finish in seconds, making it an indispensable tool for production environments where tool life and speed are critical.
Engineered with Advanced Micro-Grain Carbide Tips, this 47mm TCT cutter withstands higher temperatures and abrasion than High-Speed Steel (HSS) alternatives, ensuring exceptional performance and longevity. The triple-edge geometry features a specialized 3-ply tooth configuration (inner, middle, outer) that splits the chip load, reducing cutting resistance and preventing chatter, which is crucial when drilling larger diameters like 47mm.
The STRO784750 is designed for high thermal stability, enabling dry drilling in cast iron or high-speed drilling in steel without losing temper hardness. It is equipped with a precision 19.05mm (3/4") Weldon Shank, ensuring a secure fit in all major magnetic drill brands, such as Alfra, Hougen, Evolution, Nitto, and Euroboor. The precision internal bore facilitates smooth slug ejection immediately after the cut is complete.
This versatile 47mm TCT Annular Core Cutter is a workhorse for various applications in fabrication and heavy industry. It is essential for drilling 47mm clearance holes for large anchor bolts (typically M42 or M45) in I-beams, columns, and base plates in structural steel projects. It is also ideal for creating tapping holes or inlets in thick-walled pipes, flanges, and pressure vessels in process piping applications.
The STRO784750 is widely used for re-boring pivot points and mounting holes on excavators, cranes, and mining equipment in heavy machinery repair. It effortlessly cuts through Stainless Steel (INOX), Hardox, and high-tensile structural steel (St52), making it perfect for hard alloy fabrication. Additionally, it is an excellent choice for bridge retrofitting and railway infrastructure projects requiring on-site drilling in the construction industry.
The Strovolt 47mm TCT Annular Cutter boasts impressive performance specifications, including a +0.05mm tolerance on the 47mm diameter, a cutting depth of 50mm (allowing drilling through thick plate or stacked materials), and a HRC 90+ Micro-Grain Tungsten Carbide tip hardness. It drills 3x faster than HSS annular cutters and 10x faster than twist drills, delivering a reamer-quality finish (Ra 3.2) that often eliminates the need for deburring.
Constructed with a high-strength Heat-Treated Alloy Steel body engineered to absorb torsional vibration and prevent shank breakage, the STRO784750 features K-Grade Micro-Grain Tungsten Carbide tips (Sandvik equivalent) chosen for their optimal balance of hardness and toughness to resist impact fracture. The carbide tips are securely bonded to the body using a silver-alloy brazing process, ensuring they remain secure even under extreme heat and intermittent cutting stress. The cutter is compatible with internal cooling systems for maximum longevity.
