The Metabo HPT - Hitachi 344130920 Angle Grinder Grease 100G is a replacement lubricant used for maintaining the internal mechanical components of compatible angle grinders. It helps lubricate moving parts within the gearbox, reducing friction during operation and supporting smooth component movement. Proper lubrication also helps minimize metal-to-metal contact during regular tool us... https://www.wholetoolbox.com/metabo-hpt-hitachi-344130920-angle-grinder-grease-100g/344130920.html