舍弃式快速钻头（D×4）
C25-SD14-56L C25-SD15-60L C25-SD16-64L C25-SD17-68L C25-SD18-72L C25-SD18-72L
C25-SD19-76L C25-SD20-80L C25-SD21-84L C32-SD22-88L C32-SD23-92L C32-SD24-96L
C32-SD25-100L C32-SD26-104L C32-SD27-108L C32-SD28-112L C32-SD29-116L C32-SD30-120L
C32-SD31-124L C32-SD32-128L C32-SD33-132L C32-SD34-136L C32-SD35-140L C32-SD39-156L
C32-SD41-164L C32-SD44-176L C32-SD47-188L C32-SD49-196L C32-SD54-216L C32-SD59-236L
