1.Used for metal, stainless, wood, plastic and so on 2.Flat ... wood on the grinding ,Polishing ,Fine Polishing (Mirror Work)For Removing Rust,oxide layers,ScratchesFor burnishing, finishing and reconditioning ... rollers Spindle lock for simple change of tools Especially work stable thanks to Double Reduction gear Thumbwheel for ... gear housing The wheel can be change. electric metal Burnishing Machine