18pc Vermont American Black Max Tap and Drill Set. Made in USA. Set includes one each: 21681 6-32 tap and no 36 drill bit; 21682 8-32 tap and no 29 drill bit; 21683 10-24 tap and no 25 drill bit; 21684 10-32 tap and no 21 drill bit; 21685 12-24 tap and no 16 drill bit; 21686 1/4-20 tap and no 7 drill bit; 21687 1/4-28 tap and no 3 drill bit; 21688 5/16-18 tap and no F drill bit; and 21689 3/8-16 tap and 5/16 inch drill bit.