How to use PoE Cartographer’s Chisel?

Cartographer’s Chisel improves the quality of a map. It improves the quality of normal items by 5%, magic items by 2%, and rare and unique items by 1%. 

How to use Cartographer’s Chisel?

Right click this item then left click a map to apply it. Has a greater effect on lower rarity maps. The maximum quality is 20%.

It is advisable to only spend Cartographer’s Chisels on higher level maps, as the more item quantity on a low level map translates to negligible gains. Furthermore, since Chisels are relatively uncommon, it is usually recommended to only spend them on normal maps rather than magic or rare maps. Also, once a map is 20% it stays 20% even when scoured or changed in any other way.

Why do you want to improve quality?

Quality increases Item Quantity of maps.