Kit contains an randomly selected assortment of small diameter (sizes from #83 (.0120") to 1/16" (.0625") ) solid carbide circuit board drills. Assortment is 2 or 3 tools per size. Each drill has a plastic identification collar installed. Will perform well in your Dremel or other hand held or fixed motor. They have 1/8" shanks (some may be stainless steel), and are 1.50" long. These tools have been used in the manufacturing of printed circuit boards, but have all been 100% inspected and are guaranteed to do an excellent job of drilling your plastic, wood or whatever material you're working with. Rugged plastic storage container (shown in photo) included. Buyer to pay $9.25 shipping & handling. Now accept PayPal.