DIYbanter - View Single Post - A COC has some grinchy questions for the holidays

(Arch) writes:
1. Are there internationally agreed upon safe sizes of things
infants & small children or pets like to swallow? What is the
diameter of the cylinder that is used as a go-no go measure for
rattles, etc.

IIRC it's 1 3/8" minimum. Ask your local code enforcement officer; I
think it's a national standard. If you're going to be building a few
baby things, it's handy to drill a 1.5" hole in a board and use that
as a reference (it gives you some margin of safety).

Google can probably find this for you too.

8. To end on an unhappy note of discouragement; a sharp bowl edge
revolving at 1000 rpm can cut your pinkie to the bone.

I've had my thumb webbing slashed the same way. Not fun.