High Speed Steel Reduced Twist Drill Bit Set - 33 Piece (1/2" to 1" by 64ths) | DWDRSD Series by Drill America | Perfect for Metal, Wood & Plastic Drilling Projects

Look like good drill bits. They are marked on the shank with HSS and fractional sizes. Nice huot drill index (USA made). The country of origin is not marked on the bits anywhere. I wrote Customer service and the Qual-Tech bits are a "high quality import from China." For the price, I knew they were not USA made. they appear to be a good set. i have a set of Matco, and Chicago Latrobe bits and I got these to use in a hand drill for general purpose work so my good bits wouldn't get dull and broken or missing. After I use them, I'll update my review. So far they look good and the tips are evenly ground if a little coarse. I check them with a magnifier against a set of Chicago Latrobes that I have laying around. i only checked against bits i have not used in the set. The USA C-L bits are much nicer.UPDATE: I used this set this weekend to drill some heat treated steel, and to drill through some spot welds in thin plate. I have learned the Chinese properly heat treat the 1/8, 1/4, 3/8, and 1/2 bits because that's what we use in the USA most often. The rest of the bits can be lower quality. I intentionally used off-size bits today, and these bits are very good for the price. The call center was right, these are a good quality import set of drills in HSS.