you could buy different pulley's and see if you can squeeze them in -
or buy a gallon of lube to use when you drill.
Any machinist supply company will carry something cheap you can use.
Fill a squirt bottle - or spray bottle - and just keep the drill bit and work piece constantly soaked while you drill.
Gets a little messy if you're doing a lot of drilling, but it's a very light oil, cleans up easily.