Includes 1pc of metric reamers, diameter 1-20mm.(optional) Material: HSS Type: Chucking Reamer Feature: Smooth chip removal, safe production, not accident prone, fully milled process, high precision and good finish, very easy to use, high strength Applications: Widely used for processing, and bore machining. Designed for accurate reaming in stainless steel, aluminum, cast iron, copper, alloy steel, die steel, tool steel, plastic, wood, etc. Great for light cut, repair work, or simply for enlarging holes., Weight: 0.110231131 Pounds, Manufacturer: GOHAPY