11501570027 - 28 pieces - 15 bits + 9 sockets + 1 magnetic bit holder + 1 screwdriver + accessories - STANDARD
11900770001 - 13 pieces - 3x 2 in 1 HSS wood/metal drill and countersink bit kits + 6 HSS drill bits + 3 stainless steel bits + accessories
11501570025 - 27 pieces - 14 model-making bits + 5 wrenches + 6 nutsetters + 1 extension + 1 bit holder - PRECISION