These tools are excellent for scraping deburring and reaming. All tools have solid carbide replacement blades. Heavy Duty Noga Burr 3 - NG1003 Thebest tool for removing burrs from steel aluminum and plastic! Will doalmost all of your deburring jobs. Easy and fast replacement of bladesstored inside the handle. Includes one each: NG-1 handle heavy dutyS10 S20 and S35 blades. Light Duty Magic Burr 2 - NG2002 Will do almost all of your deburring jobs. Includes one each: Noga Grip 2 handle with light duty N1 and N2 blades.