Metal bit:tough, abrasion resistant for longer working life and high work efficiency,metal drill bit
Hole drill tool:ideal for home, diy, building and engineering use etc,metal drill bit
Metal drill bit:it is multi-coated to remain bright and sharp,metal bit
Drill bit tool:mainly for drilling wood, plastic, fiberglass, printed circuit board, and metal including copper, aluminum, tool steel, cast iron, and heavy-duty abrasive alloy metal, etc,metal drill bit