Using the Klein 31874 replacement hole cutter pilot bit is easy. First, make sure it's properly attached to your Klein carbide hole cutter product. When you start drilling, the smooth - start bit will give you better control, and the split - point drill bit will keep the bit from moving around. You can use it to cut holes in stainless steel, mild steel, iron, copper, and brass sheets that are up to 3/16 - inch thick. Just be careful not to drill too deep as the integrated flange is there to stop you from going through the sheet metal. As for maintenance, after each use, wipe the bit clean with a dry cloth. Store it in a dry place to prevent rusting. If you notice the bit getting dull, it might be time to replace it for optimal performance.
