I'm trying to remove the excess links from the 415 chain included with my 2 stroke engine kit. I used my grinder to grind down the head of the pin that I need to remove. I have beat the **** out of the stupid thing trying to get the pin to come out but it won't budge! Soaked it in penetrating oil didn't help to loosen it either. What am I doing wrong? I really don't want to buy a chain break that I'll use one time. Thanks!