General description Sherwood 4.50MM x 315MM O/A HSS S/S Drill is a high-quality drill designed for general-purpose use on various materials including steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy, and graphite. This drill features a straight shank and is part of the Series E100, known for its extra length and durability. Technical specifications Drill Diameter: 4.5mm Overall Length: 315mm Flute Length: 250mm Point Angle: 118° Helix Angle: 30° Number of Flutes: 2 Material: High Speed Steel Finish/Coating: Steam Tempered Drill Diameter Tolerance: h8 Shank Diameter Tolerance: f11 Web Thickness: Standard Relief Angle: 10 - 20 Cutting Direction: Right Hand Flute Type: Spiral Shank Type: Straight Standards Met: BS 328 Other information