Well hook-- can be in many places, such as sewer maintenance, factories, outdoor manhole opening. Sewer hook-- only this hook is needed, and the manhole can be easily opened without other tools. Manhole lifting tool-- and , and can serve you for a time. t-Hook Roller t Hook Manhole Tool Manhole Hook Drain Hooks siding Hooks s Hook Manhole Lifter Hook Hooks for Hanging Stainless Steel Shutter Color Silver Size 38X15.2X6CM Well hook-- can be in many places, such as sewer maintenance, factories, outdoor manhole opening. Sewer hook-- only this hook is needed, and the manhole can be easily opened without other tools.