Craftsman 442-033 Large Chuck Key for Drill Press This chuck key replaces part number 18129 Fits Craftsman model 103.24511 12-Inch long, 8-Inch wide, and 2-Inch high Package weight of this item is 2-Pound Pilot size 5/16 . 11 teeth Fits models-10323141, 10323570, 10323641, 10324500 ,10324501 ,10324510 ,10324511 ,10324520 ,10324521