Adjustable manual reamer, cutting diameter from 19 to 21 mm

Made of HSS material with an adjustable range.

Suitable for A3 steel, steel alloys, cast iron, cast steel, aluminum, and other metallic materials.

Function: A reamer has one or more cutting teeth and is used to remove a rotating tool from a surface that has been machined to form a thin layer of metal. Once the hole is machined using a reamer, a precise size and shape can be achieved.