Defence Oil OM 13 somt040202 drilling insert This API GL-4 gear oil

This API GL-4 gear oil maintains optimum viscosity across a wide temperature range

and hard-to-reach areas in medium hardened materials up to 55 HRC

one is for Hardened steel

32 mm of the holder inner diameter

There are many Chinese brands also making the same inserts

Defence Oil OM 13 somt040202 drilling insert This API GL-4 gear oilApplications of Defence Oil OM 13 5L Z Premium OM 13 is a high grade multipurpose lubricating oil formulated for use in military vehicles, machinery, and equipment that require dependable lubrication under moderate to heavy conditions. It is designed to provide smooth operation, wear protection, and corrosion resistance across a wide range of applications. Military Vehicle Lubrication Suitable for engines, gearboxes, and mechanical linkages in trucks,