Double-ended drill bits are unique because there are two bit sides you can use. After one side of the bit gets dull, you can flip it to the new side. The benefit of having double-ended bits is that they save you money and time delays from having to stop what you are doing to replace your bit. Just flip it and keep drilling! The double-ended drill bits can also be made from your choice of premium high-speed steel, titanium, and cobalt, all excellent materials for heavy-duty construction.

Double end twist drill, to drill sheet metals. Especially designed for thin sheet metal and carbody building and for rivet holes. Mainly used in hand drills.