Irwin Hanson 63221 21 Piece Cobalt Drill Bit Set. Up to 3/8 by 1/64ths. Arctic Tools A cool place for tools. Our in depth inventory and immediate availability to most name brand aftermarket tools gives certified technicians, and home repair professionals access to only the best automotive repair tools available. All items are set to USA standards. All items are Brand New unless otherwise noted. We can supply you with a receipt and help in any way possible but we can not take back products after the 7 days. If an item is received D. Arctic Tools can not make any exceptions. You may also be interested in…. View more great items. Template by Froo Apps.