Cheapo sidepull, centrepull and dual pivot can be adjusted for toe-in by bending with either a big adjustable spanner or the special tool.
More expensive brakes with a bit of metal thickness about them shouldn't be mechanically adjusted ( bent ). File the brake blocks at the rear to effect a 'lead-in' chamfer.
You can file the entire length of the block if you wish to similaute the toe-in.
If the brakes have 'cartridge' blocks which can be slipped in and out of the boxes and held secure by a small hex head screw, file them OUT of the boxes with them held in a vice.
These type of 'cartridge' blocks can be replaced without taking the box off the brake stirrup. Then there is no need to go through the toe-in setting procedure every time the cartridges are changed.