Nooo! don't try bending those claiper arms. The Delta is not like a Weinmann 500 sidepull that one would normally use the bend your caliper arm method to toe in the pads. The Delta pad holders do have a swivel joint and toe in screws built into its mounting bolt assembly and pad holder channel that lets you toe in the pads as needed.......but only to some point. You do need to check if your brake pads are too worn down and if the holders are already toed in to their limits. If that's the case, you just need to change the pads for new ones to get rid of the squealing.

Chombi