1. 80mm M42 bi-metal hole saw kit for poultry PVC water & feed pipe
2. Built-in spring ejector for automatic waste removal
3. Smooth burr-free cutting for plastic breeding pipeline
4. Hex shank fits all cordless & corded hand drills Anti-rust red coating suitable for humid farm houses
5. Detachable spare parts, low long-term use cost
6. Exact size matching livestock chicken drinker & feed cup
