General description Evolution Cyclone Premium Annular Cutters are designed for fast and accurate drilling in heavy-duty steel, making them ideal for construction, civil engineering, offshore installation, petrochemical, railway, and maritime fabrication. Made in the UK from S360 Tungsten-Molybdenum Steel, these cutters outperform HSS, Cobalt, or Ti-Ni coated cutters, providing unmatched durability and performance. Technical specifications Working length: 25 mm Material: S360 Tungsten-Molybdenum Steel Shank type: Weldon 19 mm (3/4 inch) Heat treatment hardness: up to 68 RC Included cutter sizes: 14 mm, 18 mm, and 22 mm Compatibility and accessories Compatible with Weldon shank magnetic drills (19 mm) Includes a matching pilot drill for precise drilling Installation Insert the annular cutter into the magnetic drill's chuck, ensuring a secure fit. Use the included pilot drill to guide the cutting process. Apply appropriate cutting fluid to enhance performance and tool life. Usage Use for