定深套/劃窩鑽/銑平鑽/倒拉劃窩鑽/倒拉銑平鑽 - 3-6 AT 570-50 AT 570-40 AT 570-30 AT 570 28 AT 570-21 AT 570-20 AT 570-12 AT 570-11 AT 570-10 AT 570-7/32 AT 570-1/4 AT 570-5/16 AT570-40 AT570-30 AT570-28 AT570-21 AT570-20 AT570-12 AT570-11 AT570-10 AT570-7/32 AT570-1/4 AT570-5/16 AT503C-3/32AT503C-1/8 AT503C-5/32 AT503C-3/16 AT503C-7/32 AT503C-1/4 AT503C-40 AT503C-30 AT503C-21 AT503C-11 AT503C-10 AT503C-#F AT503-10 AT503-11 AT503-20 AT503-21 AT503-30 AT503-40 AT503-70 AT503-72
