[Hand Reamer]: 2pcs multi-layer deburrer; Pipe drilling capacity is 5-38mm, for both inner and outer pipes. [Material]: Plastic with durable hardened steel. [Applies [to]: The universal pipe reamer is an excellent tool for deburring or chamfering pipes, copper, aluminum and mild steel pipes. [Easy to carry]: Small, lightweight and easy to carry. [Area of application]: Industry, crafts and DIY; air conditioning installation and vehicle maintenance, etc.