Some time/years ago, I misplaced my 1” drill used to create the recess for baseboard joining dowels.
Recently, while browsing a large internet retailer’s website, in amongst the plethora of metric sized drills, I found a set of three flat wood drill bits in 1/2”, 3/4” and 1” sizes according to the description. All for the princely sum of £2.53 including postage.The size could be read on the drills, so the order was placed. A couple of days later the order arrived with the packaging proclaiming it included 1/2” (13mm), 3/4” (19mm) and 1” (25mm) drill bits. Not quite so impressed!
Checking with a micrometer didn’t help much either
1/2”. 0.545”. 13.87mm
3/4”. 0.774”. 19.67mm
1”. 0.991”. 25.18mm
In use, the 1” bit produces a recess that is a firm fit for the dowels, with no slop whatsoever. Impressed again. Whether an 85p drill bit is up to making the 12 recesses required remains to be seen.