1. MATERIAL: HSS6542 M2 high speed steel material, strong and , possess long life, suitable for many metal materials2. MAIN FUNCTION: Used to align existing holes and enlarge undersized holes before installing bolts or rivets. The reamer bit align and expand the pre drilled hole, making the reaming smooth without tear3. APPLICABLE SCENARIO: Hex shank reamer is commonly used in bridge, construction, steel structure installation and other metal structures, applicable to steel, metal, alloy aluminum, brass, plastic, iron, copper, cast iron materials4. SIZE INFORMATION: Spiral flute hex shank reamer has a handle diameter of 31.8mm and a maximum knife diameter of 13/16 inches5. WITH BOX: Aligning reamer equipped with a storage box for easy storage, portability and access, and also prevent damage and lossSpec:Item Type: Hex Shank ReamerMaterial: HSS6542, M2 high speed steelHandle Diameter: Approx. 31.8mm / 1.25inMaximum Cutter Diameter: 13/16inpacking list:1 x Hex Shank Reamer1 x Storage Box