1) Advantage: the drill bit is Powerful, which can make holes in most of materials like Steel,Metal,Ceramic,Glass,Tile,Wood,Plastic,Aluminium. Just buy these drill bit, can satisfied most DIY working, like make a hole on the wall.
2) the 6Pcs drill bit set include: 2pcs 6mm(1/4"), 1pcs 8mm(5/16"),1pcs 10mm(3/8"), 1pcs 12mm(1/2"),1pcs screwdriver bit PH2xPH2 with strong magnetic.
3) Nice packing of plastic box, easy for storage.
4) Notice: Please keep safe when operate the drilling work. it is better firstly slow speed,then higher. wear safety glasses it important for safe of eyes.