Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: Product Features:1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Made of HSS Product material, adjustable range.4.Fit for A3 steel, alloy steel, cast iron, cast steel, aluminum and other metal Product materials, etc.5.Functions:The reamer has one or more cutter teeth, which are used to remove the rotating tool that has been machined to the thin metal layer of the surface. The precise size and shape can be obtained after the hole is machined through the reamer.6.Applications:reamers to ream the workpiece has been drilling (or bearizing)after processing, mainly to improve the machining precision of hole, reduce its surface roughness, used for finishing and semi-finishing of cutter hole.Specification:Color:Silver and BlackReamer Product material: HSSAdjustment range: 19-21mmDimension:180 x 19mm or 7.09 x 0.75inch(L x Dia)Weight:246gPackage Include:1x Hand Reamer Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.