Description:Tools have no finish or coating. They are a good choice for general purpose applications.Straight shank reamers suitable drilling hole for aluminum, cast iron, copper, magnesium alloy, plastic, wood, etc.Straight shank machine reamers can be installed on drilling machines, milling machines, etc. Specification:Product Name: Chucking ReamerMaterial: HSS (High Speed Steel)Flutes Quantity:6Main Color:Silver Tone,GrayAccuracy: H7Cutting Diameter: 13mm / 0.51",Tool Flute Length: 42mm / 1.65",Shank Length: 42mm / 1.65",Overall Length: 150mm / 5.9"Cutting Diameter: 8mm / 0.31",Tool Flute Length: 33mm / 1.3",Shank Length: 42mm / 1.65",Overall Length: 112mm / 4.41"Cutting Diameter: 11mm / 0.43",Tool Flute Length: 40mm / 1.57",Shank Length: 45mm / 1.77"Overall Length: 135mm / 5.31"Cutting Diameter: 12mm / 0.