I'm kinda obsessing over drill bits these days. I used to buy drill bits at harbor freight and they would do OK for awhile and then they would start walking and required you put your weight into them, then start smoking and making weird noises. Then I recieved a set of drill bits for my birthday in June. At first I thought it was pointless to spend good money on drill bits because of my Harbor freight way of thinking. I used these bits a lot in the last couple weeks on my valiant build. These bits are truly for the mature machinist and craftswoman. They are precise, cut like butter and are just amazing. The cool thing is that singles are available to replace broken bits, should it happen. Who would have thought i was missing out on so much. Best birthday gift in years. They are made in USA. Norseman 115pc Magnum Super Premium Drill Bit Set SP-115 (SP-115) What do you guys use for drill bits out there??