Strovolt 15mm x 50mm TCT Annular Core Cutter Tungsten Carbide Tipped Mag Drill Bit Heavy Duty Metal Hole Saw for Stainless Steel & Rail 3/4" Weldon Shank STRO781550

The Strovolt STRO781550 is a premium 15mm TCT (Tungsten Carbide Tipped) Annular Core Cutter designed for professional fabricators and metalworkers who demand speed without compromising precision. With a substantial 50mm cutting depth, this heavy-duty metal hole saw excels in deep-hole drilling through multi-layered plates, structural steel sections, and tough alloys like stainless steel and cast iron.

Engineered with advanced carbide technology, the STRO781550 maintains its razor-sharp edge significantly longer than traditional HSS cutters, making it the most cost-effective choice for high-volume production and challenging materials. The ultra-hard tungsten carbide teeth are precision-brazed to the specialized alloy steel body, capable of withstanding temperatures up to 800°C without losing hardness. This robust construction absorbs vibration and resists snapping during interrupted cuts.

The triple-layer cutting geometry, with distinct internal, middle, and external angles, balances the cutting load and eliminates chatter common in larger diameter bits. The tapered inner wall and polished flutes ensure efficient slug ejection, preventing the tool from binding. This annular cutter delivers a reamer-quality hole finish, eliminating the need for secondary deburring.

Featuring a standard 19.05mm (3/4") Weldon Shank for maximum grip and compatibility with popular mag drill brands, the STRO781550 is optimized for bolt hole preparation, creating high-tolerance clearance holes for M14 fasteners. It is extensively used in heavy construction applications like bridge girder fabrication, refinery maintenance, and automotive chassis work. With its uncompromising performance and durability, this 15mm TCT Annular Core Cutter from Strovolt is a must-have tool for any professional metalworking shop.