HHIP 25 Piece 1/2-13, 5/8-11, 3/4-10, 9/16-12 Transfer screw set. Convenient and economic combination of four sizes often used together. Set includes 1 solid handle and 24 screws with 6 pieces of each size. More accurate than transfer punches. The fastest and most precise method of transferring threaded holes to mating parts. Great for tool and die work and in layouts.