I have a Porter Cable model 548 heavy duty worm drive scroll saw variable speed. Wouldn’t you know it the most needed blade has been discontinued. Blade no. 12318. But I scored 100 blades on ebay for a little over $1.00 a blade. Don’t need 100 blades but when it is almost impossible to find I guess I call it a lifetime supply.
-- bobdurnell, Santa Ana California.