Diamond Coring Drill Tool Size and Set
Common specifications of diamond coring drill bits (インチ): 2 4 5 6 7 8 10 12 inches, 等. Common specifications of diamond coring drill bits (mm): 110mm, 110mm, 117mm, 120mm, 125mm, 127mm, 130mm, 150mm, 160mm, 180mm, 200mm, 等.