This is a single piece M16x1.5 male needle valve type oil cup with a 200 ml capacity, a gravity drip feed oiler lubricator designed for machine tools such as lathes and mills. It includes a sight for monitoring oil level to help ensure continuous lubrication during operation. Key benefits Precise lubrication control with a needle valve allows adjustable flow to match the needs of different machine tool setups. Gravity drip feed provides a steady oil supply, helping to maintain lubricating film on moving surfaces during operation. 200 ml oil cup reduces the need for frequent refills, supporting longer operation between maintenance checks. Builtin sight enables quick visual inspection of oil level without disassembly. M16x1.5 male thread compatibility supports straightforward installation on compatible tool assemblies. Designed for machine tool use, suitable for lathe and mill lubrication scenarios. Key attributes Functionality: gravity drip feed oiler with a needle valve for adjustable flow Compatibility: M16x1.5 male thread Capacity: 200 ml oil cup Type: oil cup with needle valve Features: sight for oil level monitoring Applications: machine tools including lathes and mills Specifications Quantity: 1 piece (1pc) Thread: M16x1.5 male Oil cup capacity: 200 ml Type: Needle valve, gravity drip feed oiler Sight: Yes (sight for oil level) Applications: machine tool lubrication for lathe, mill Use cases Case 1: On a lathe, install the oil cup to provide gravityfed lubrication to sliding surfaces and moving components, with adjustable flow via the needle valve to suit cutting conditions. Case 2: On a milling machine, partner the oiler with the lead screw and guideways to maintain consistent lubrication during long runs, using the sight to monitor oil level at a glance. Case 3: In a small workshop, deploy as a central gravityfed lubrication point for various machine tools, ensuring a steady oil supply to critical moving parts without frequent refills.