CORE DRILL KSU is a high-quality product known for its durability and robustness
| (นิ้ว) | 1 “ | 1 ¼ “ | 1½ “ | 2 “ | 2½ “ | 3 “ | 3½ “ | 4 “ |
| (OD) | 27.9mm | 33.3mm | 40.7mm | 53.2mm | 64.7mm | 77.2mm | 89.9mm | 110mm |
| (นิ้ว) | 5 “ | 6 “ | 7 “ | 8 “ | 9 “ | 10 “ | 11 “ | 12 “ |
| (OD) | 128.5mm | 160mm | 180mm | 204mm | 229mm | 254mm | 279mm | 304.0mm |
