High speed steel materials, Strong and durableApply to saw blade who's inner hole is 3.2mm, this connecting rod can make a drilling machine changed to be a cutting machine, very easy to use.Colour:silverMaterial:High speed steelSize:3.17*49mmPackage Contents:1* set of 5 electric grinder accessoriesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
