Descriptions:The main body is made of aluminum, which is not easy to wear and burst compares to plastic material.The outside diameter of the oil level sight glasses with recessed hex design.Male thread with an O-ring on the periphery, easy to install and well sealed the oil.With strong bending strength and lightweight glass, shows great working performance. glass is more clear and more transparent, the oil level can be read easily and correctly in the middle by the sight glass, helping to judge the condition from the outside.Used widely to check the oil level of the pump in CNC, air compressor, hydraulic machine, speed reducer etc.NOTE: Please check the thread type and size carefully before ordering. Specification:Material: Aluminum, GlassThread Size: G1/2"Outside Diameter: 26mm / 1.02"Hex Width: 24mm / 0.
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