Manufacturer's DescriptionFor positioning door hinges. Using hinges as template, drill directly through the hinge holes. Chamfered hinge drill bits with spring loaded sleeve to match counter-sunk holes in hinges. HSS drill bits. Sizes: 2, 2.8 and 3.6mm.Recognised and trusted throughout the UK and Europe, Silverline’s comprehensive range of tools meets both current and future demands. New products, utilising the latest technology, are being delivered every day, ensuring Silverline customers get the very latest tools.The Silverline range includes over 5000 hand and power tools for use in the home, garden and workshop. All Silverline tools come with unbeatable guarantees - hand tools are guaranteed for life, and power tools are guaranteed for 3 years.Subjected to thorough testing, Silverline delivers tools that comply with the very latest standards in quality and safety.