[FAQ] - Hook Countersink (Center Drill) Hole

Question

Why has there a hole machined into the top of the hook of this hoist?

Answer

The Center Drill hole in the top of hook assembly # HLK-K590 (hook # HLK-377) is normal. It is a result of the manufacturing process. This is a common process and may be seen on hooks from multiple model and part numbers across the Ingersoll Rand product line.