General description This Dormer E500 HSS Coarse Tap is designed for creating or repairing internal threads in various materials. It features a metric ISO M3 thread with a pitch of 0.50 mm, making it suitable for both through and blind holes in structural and carbon steel. This hand-held tap is ideal for DIY and professional applications, providing precise threading capabilities. Technical specifications Thread type: Internal, metric ISO M3 Thread pitch: 0.50 mm Tolerance class: 6H Dimensions: Diameter 3.15 mm, square drive 2.5 mm Material: High-speed steel (HSS) Surface finish: Bright (polished) Flute Geometry: Straight Flutes ISO 529 Compatibility and accessories Compatible with standard M3 taps and threading tools Suitable for use in structural steel and carbon steel Installation Designed for manual operation; no special installation required Use with appropriate tap wrench or handle for manual turning Usage Use to cut or repair internal threads in metal components Ensure proper