how to find a blade

I’d check places like Amazon, but instead of looking for a 12” blade with 30mm bore, look for a 300mm (11.8”) blade with a 30mm bore.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

I agree that Holbren is an excellent supplier if he’s got the blades needed, but I can’t for the life of me figure how it’s easier to have a blade custom bored vs ordering a stock 11.8” blade that already has a 30mm bore, but if your way is the only way, that’s ok too. :-)

Lotsa choices here

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

thanks a lot for replyes,
my problem is, I live in Mongolia(Asia) and I can`t just call or go there and buy and I can`t afford to buy just to try and return. that is why I have to make research and get best one. also I ask a friend in US San Francisco to get it and send it to me. that way is lot cheaper. A friend of mine is a busy person so I have to find it myself and tell him exactly where to go and what to buy, that is why it is so complicated to me. otherways we have here a lot of cheap Chinese stuff that lasts only for one cut.

-- if somebody else can do it, you can do it too