Drilling through the cotter pin with increasing sized bits until there is no coter pin left
Will ruin the bottom bracket spindle and take quite a while.
If you don't want the cranks I'd personally just hacksaw/angle grind through the bottom bracket axle and bin them.
Drilling through the cotter pin with increasing sized bits until there is no coter pin left
Will ruin the bottom bracket spindle and take quite a while.
If you don't want the cranks I'd personally just hacksaw/angle grind through the bottom bracket axle and bin them.