Mobile power tool having an aqueous lubricant, and use of the mobile power tool

A mobile power tool having a drive unit, wherein the drive unit has an aqueous lubricant and/or in that the drive unit is designed for operation with the aqueous lubricant, wherein the aqueous lubricant comprises at least 5 percent water, wherein an interior (IB), containing the aqueous lubricant, of the drive unit is sealed off from an exterior (AB) by at least one sealing geometry of the mobile power tool, wherein the sealing geometry has a sealing lip that bears against a mating surface of the mobile power tool when the drive unit is at a standstill, in order to seal off the interior (IB) from the exterior (AB), and wherein the sealing lip of the sealing geometry is configured such that, during operation of the drive unit, the sealing lip comes away from the mating surface or that, during operation of the drive unit, a pressure force of the sealing lip on the mating surface is reduced at least compared with when the drive unit is at a standstill.