Cartographer's Chisel

Cartographer's ChiselStack Size: 20Improves the quality of a mapRight click this item then left click a map to apply it. Has greater effect on lower rarity maps. The maximum quality is 20%.
Shift click to unstack.

A Cartographer's Chisel is a currency item that is used to improve the quality of a map. The amount of quality given depends on the rarity of the map.

Obtaining

Cartographer's Chisels are an uncommon item that can found starting at item level 50. Zana, Master Cartographer will also sell 20 Cartographer's Chisels in exchange for 16 Chaos Orbs once daily.

One can sell any map with 20% quality to any vendor for a Cartographer's Chisel.

One can sell any number of maps whose total quality is at least 40% to any vendor for a Cartographer's Chisel.

A Cartographer's Chisel can also be obtained by using the following vendor recipe:

Result	Recipes	Notes
1× Cartographer's ChiselCartographer's ChiselStack Size: 20Improves the quality of a mapRight click this item then left click a map to apply it. Has greater effect on lower-rarity maps. The maximum quality is 20%.	1× Stone HammerStone HammerOne Handed Mace Physical Damage: 15-27 Critical Strike Chance: 5.00% Attacks per Second: 1.30 Weapon Range: 1.1 metresRequires Level 15, 56 Str15% reduced Enemy Stun Threshold/Rock BreakerRock BreakerOne Handed Mace Physical Damage: 37-69 Critical Strike Chance: 5.00% Attacks per Second: 1.15 Weapon Range: 1.1 metresRequires Level 41, 134 Str15% reduced Enemy Stun Threshold/GavelGavelOne Handed Mace Physical Damage: 54-101 Critical Strike Chance: 5.00% Attacks per Second: 1.15 Weapon Range: 1.1 metresRequires Level 60, 212 Str15% reduced Enemy Stun Threshold with 20% quality 1× Any Map	Map and Hammer can both be normal, magic or rare.

Spending

Quality Increase by Rarity

Item Rarity	% Increase
Normal	5
Magic	2
Rare	1
Unique	1

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.