EASY Pull the handle with your hand, the plunger is pressed and the oil in the cylinder is excluded. Release it, the plunger absorbs oil under the force of the spring. WIDE APPLICATIONS: This manual lubricating oil pump can be widely used for punching machine, lathe, cutting machine, milling machine, etc. WAL SEALED: This pump uses high-quality seals, not easy to lose. Safe to use for transporting oil. CAN BE PART OF A LUBRICATION SYSTEM: This lubrication pump can be combined with a choke dispenser to form a lubrication system. It is recommended to use the viscosity of N20-N1000 oil. Made of high quality metal material, wear-resistant, corrosion-resistant, has a long service life., Weight: 2.094391489 Pounds, Manufacturer: Hilitand