JIECHENG Mandrel Downlight Recessed Plastic Review

Heavy Duty Bi-metal Hole Saw,the material is HSS bi-metal M42,with very high hardness and sharp teeth for smooth cutting. The Diameter of the hole saw is 6.38 inch (162mm),total height of hole saw is 1/2 inch (38mm),with Hex shank Mandrel,and also extra Pilot drill bit for replacement. It is used for making holes on wood,plywood,gypsum board,and some soft metal.most customers buy this mainly for cutting hole on ceiling for 6inch downlight,ceiling ligth,can light,recessed light.and also for air ducts,ventitlation duct,speakers,range hood,corn hole boards. Using skills:please firstly use a relatively low speed to make the location,and secondly increase the speed to drill deeper,in this case will be safe,and cut better holes and prolong the service life of saw teeth. Notice:please pay attention to safety when using,the teeth is sharp. children are not allowed to use it.