General description This is a set of two manual taps designed for threading in various materials. Manufactured by DORMER, these tools are suitable for precise and efficient threading tasks, ideal for DIY and home improvement projects. Technical specifications Includes two tools: a tap and a pre-hole drill Thread Size: M4 Tap type options: 2nd tap for through holes or plug tap for blind holes Suitable for threading up to 1.5 times the diameter in most materials (ISO Standard) Compatibility and accessories Compatible with various materials requiring M4 threading Includes a split-point jobber drill and a straight flute tap Installation Use the pre-hole drill to create a hole in the material Follow with the tap to cut the internal threads Ensure proper alignment and apply appropriate torque for best results Usage Designed for manual threading tasks in DIY and home improvement projects Suitable for creating internal threads in metal, plastic, or other materials