HSS Countersink 16.5mm

The Faithfull 16.5mm High Speed Steel Rosehead Countersink is designed for larger countersinking applications, making it the perfect choice for bigger screw heads and more substantial fixings in professional metalworking and carpentry projects. This larger diameter variant creates precise recesses for flush-fitting screw heads in mild steel, plastics and non-ferrous metals, whilst also performing superbly in wood, plywood, MDF and other man-made boards. Featuring a precision 90° included angle, this rosehead countersink delivers professional results whether used in hand tools or power drills. The High Speed Steel construction ensures the cutting edges remain sharp through demanding applications, providing consistent, clean countersinks that achieve flush finishes for a polished, professional appearance across diverse materials. Features and Benefits: • 16.5mm diameter ideal for larger screw heads and substantial fixings • High Speed Steel rosehead for long-lasting cutting performance • 90° included angle for standard countersunk screw compatibility • Versatile use in both hand tools and power drills • Multi-material capability for metals, plastics, timber and man-made boards Specifications: Countersink Type: Countersink Size (mm): 16 Length: 55mm (2.1/4in) Shank diameter: 9.4mm (3/8in)