Freeing a frozen bolt (lawnmower blade)

[Bunky]

I would use a six point socket with a long breaker bar if you don't have an impact. The bolts head gets rounded from debris under the deck sandblasting the edges making a six point socket a must.

Agree. Six point socket and long bar. You may consider getting a helper to hold the socket against the bolt so it does not push off.

 

[BillE]

As has been said above>>>impact wrench.

I go thru this every spring, couple 'o burps and it's loose.

Bill