The Dormer A125 HSS Extra Long Series Drill Bit is engineered for precision drilling in deep and hard-to-reach areas. Made from high-speed steel, this drill bit offers exceptional durability and performance, making it ideal for professional and industrial applications. When using these Dormer A125 Extra-long HSS Drill Bits care must be taken to reduce the incidence of bending or breaking. If the bits are not used with care or are used with excessive weight being added to the drill, then you will bend or break them. It is important to start with a shorter bit, working through each length and to let the drilling machine do the work. No Warranty On These Drill Bits. Features & Benefits • High speed steel construction for superior durability and longevity • BS328 • Extra-long length for deep hole drilling and hard-to-reach areas • Standard spiral flute design • 118° point angle • Steam tempered Specifications • Diameter: 11mm • Overall Length: 250mm • Quantity: 1