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12 Inch Size Bits   
12 inch rerun Hughes ATJ-22 iadc 517 12 inch rerun Hughes MX30 iadc 537 12 inch rerun Security XL30 iadc 537 12 inch rerun Security XL30D iadc 537
12 inch rerun Smith 20M iadc 517 12 inch rerun Smith 25GF 12 inch rerun Smith GF20 iadc 517 (2) 12 inch rerun Smith GF20 iadc 517 (3)
12 inch rerun Smith GF20 iadc 517 12 inch rerun Smith GFS20 iadc 517 12 inch Smith GF20 iadc 517 12in Hughes MX30H (2)