Makeshift lap

[Frank S]

Making do with the tools at hand is something we all have to deal with. the Key though is knowing how.
Good job on your oak bearing holes. When I was still a kid it was my job to make split bearings for some of our older at that time farm equipment, We had a hand cranked drill press mounted on a wall in the barn with an adjustable auger bit like yours. Bore the hole to size saw in half then rasp for take up as they would wear, every winter make up a new set We didn't bother burnishing them or charring to harden. Just run the equipment for a day with the new bearings before greasing seemed to make them last through the spring planting