Made of high speeds steel, these reamers have high hardness and durability Processed surface of iron, plastic, wood, copper, aluminum and other soft materials Widely used for bore machining, installed in drilling machine, milling machine, etc Applicable for reaming to mould processing and handicraft processing Sharps cutting-edge, high cutting ability, high accuracy, long service life, Weight: 0.5732018812 Pounds, Manufacturer: Candeon