Strovolt Premium TCT Annular Core Cutter 79mm Diameter x 50mm Depth Tungsten Carbide Tipped Mag Drill Bit Part No: STRO787950

The Strovolt STRO787950 Premium TCT Annular Core Cutter is a heavy-duty, industrial-grade tool designed for large-diameter hole making in thick materials. Featuring a substantial 79mm cutting diameter and a 50mm cutting depth, this core drill bit effortlessly bores through steel plates, pipes, and structural beams with significantly less power and time than traditional twist drills.

Engineered for extreme performance, the Strovolt TCT series utilizes premium micro-grain tungsten carbide tips welded to a tough alloy steel body. This construction allows the cutter to handle the high torque required for a 79mm hole while maintaining thermal stability. Its advanced multi-tooth geometry reduces vibration and optimizes chip load, delivering a smooth, burr-free finish in a single pass—eliminating the need for pilot drilling or step drilling.

The Strovolt 79x50mm TCT Annular Cutter is essential for large-scale fabrication projects in heavy infrastructure, pressure vessels and tanks, shipbuilding, power generation, and hard metal drilling. It effortlessly cuts through stainless steel (INOX), cast iron, and high-tensile structural steel, making it indispensable for creating large anchor holes, bolt patterns, inlets/outlets, and penetrating thick hull plates and bulkheads.

With its standard 31.75mm (1-1/4") Weldon shank, this cutter is designed to handle high torque loads and operate at higher surface speeds than HSS, reducing production downtime. Its advanced design removes material only at the periphery, ejecting a large solid slug/core, requiring significantly less horsepower than solid drilling a 79mm hole, resulting in increased efficiency and cost savings.