Using the Makita B - 49373 75 - Piece Metric Drill and Screw Bit Set is easy. First, pick the right bit for your job. If you're drilling into metal, use the Titanium nitride coated high - speed steel (HSS - TIN) drill bits. For wood, the brad point wood drill bits work great. When you need to start a hole in metal, use the center punch to make a small indentation first. When fastening, choose the appropriate insert or power bit like Phillips, Pozidriv®, Torx®, Slotted, or Hex. Make sure to use the 1/4' hex countersink for a clean finish on wood. When you're done, store all the bits in the convenient storage case. As for maintenance, keep the bits clean. After use, wipe them down with a dry cloth. Avoid exposing the bits to moisture for long periods to prevent rust. If you notice any dullness or damage to the bits, it might be time to replace them.
