RuneScape Wiki
Has a 3% chance per rank of transmuting a gathered resource to a higher tier.
Release date 14 March 2016 (Update)
Gizmo type Tool
Maximum rank 3

Polishing is an Invention perk that has a chance to transmute a gathered resource to a higher tier. It can be created in tool gizmos.

When the perk triggers, it prompts the message: Your polishing perk upgrades the gathered resource.

When Polishing activates, the experience gained in the gathering skill will be that of the original item, not the transmuted item. For example, if Polishing transmutes a regular log into an oak log, only 25 Woodcutting experience will be gained, instead of 37.5 experience.

Upgrade chance
Rank Chance (level 20)
1 3% (3.3%)
2 6% (6.6%)
3 9% (9.9%)


Level Original item Transmuted item Profit/loss
1 Raw shrimps.png Raw shrimps Raw anchovies.png Raw anchovies 114
1 Raw crayfish.png Raw crayfish Raw herring.png Raw herring 269
5 Raw sardine.png Raw sardine Raw herring.png Raw herring 61
10 Raw herring.png Raw herring Raw cod.png Raw cod 433
16 Raw mackerel.png Raw mackerel Raw cod.png Raw cod 651
20 Raw trout.png Raw trout Raw salmon.png Raw salmon 126
23 Raw cod.png Raw cod Raw tuna.png Raw tuna -760
25 Raw pike.png Raw pike Raw salmon.png Raw salmon -128
30 Raw anchovies.png Raw anchovies Raw cod.png Raw cod 468
30 Raw salmon.png Raw salmon Raw tuna.png Raw tuna -160
35 Raw tuna.png Raw tuna Raw bass.png Raw bass 666
38 Raw rainbow fish.png Raw rainbow fish Raw bass.png Raw bass 540
40 Raw lobster.png Raw lobster Raw bass.png Raw bass 661
46 Raw bass.png Raw bass Raw swordfish.png Raw swordfish -673
48 Leaping trout.png Leaping trout Leaping salmon.png Leaping salmon 1
50 Raw swordfish.png Raw swordfish Raw monkfish.png Raw monkfish 666
52 Raw desert sole.png Raw desert sole Raw catfish.png Raw catfish 267
58 Leaping salmon.png Leaping salmon Leaping sturgeon.png Leaping sturgeon 170
60 Raw catfish.png Raw catfish Raw beltfish.png Raw beltfish 331
62 Raw monkfish.png Raw monkfish Raw shark.png Raw shark 420
68 Raw green blubber jellyfish.png Raw green blubber jellyfish Raw shark.png Raw shark 814
70 Leaping sturgeon.png Leaping sturgeon Raw shark.png Raw shark 1,108
76 Raw shark.png Raw shark Raw cavefish.png Raw cavefish 566
85 Raw cavefish.png Raw cavefish Raw rocktail.png Raw rocktail 2,505
90 Raw rocktail.png Raw rocktail Raw blue blubber jellyfish.png Raw blue blubber jellyfish 1,944
90 Raw tarpon.png Raw tarpon Raw seerfish.png Raw seerfish 0
91 Raw blue blubber jellyfish.png Raw blue blubber jellyfish Raw sailfish.png Raw sailfish -650
92 Raw seerfish.png Raw seerfish Raw sillago.png Raw sillago 1
93 Small crystal urchin.png Small crystal urchin Medium crystal urchin.png Medium crystal urchin 1 point
95 Medium crystal urchin.png Medium crystal urchin Large crystal urchin.png Large crystal urchin 1 point

Unaffected items


Level Original item Transmuted item Profit/loss
1 Copper ore.png Copper ore Iron ore.png Iron ore 112
1 Tin ore.png Tin ore Iron ore.png Iron ore 333
15 Iron ore.png Iron ore Coal.png Coal -337
20 Silver ore.png Silver ore Gold ore.png Gold ore 449
30 Coal.png Coal Mithril ore.png Mithril ore 85
55 Mithril ore.png Mithril ore Adamantite ore.png Adamantite ore 30
70 Adamantite ore.png Adamantite ore Runite ore.png Runite ore 1,192
77 Coal.png Concentrated coal rock Mithril ore.png Mithril ore 85
77 Coal.png Harmonised coal rock Mithril ore.png Mithril ore 85
84 Mithril ore.png Harmonised mithril rock Adamantite ore.png Adamantite ore 30
89 Adamantite ore.png Harmonised adamantite rock Runite ore.png Runite ore 1,192
90 Sea salt.png Salty crabletine Alaea sea salt.png Alaea sea salt 1
91 Sea salt.png Salty crablet Alaea sea salt.png Alaea sea salt 1

Unaffected items


Level Original item Transmuted item Profit/loss
1 Logs.png Logs Oak logs.png Oak logs 300
1 Achey tree logs.png Achey tree logs Oak logs.png Oak logs -398
15 Oak logs.png Oak logs Willow logs.png Willow logs -343
30 Willow logs.png Willow logs Maple logs.png Maple logs -140
35 Teak logs.png Teak logs Mahogany logs.png Mahogany logs 195
45 Maple logs.png Maple logs Eucalyptus logs.png Eucalyptus logs 643
47 Acadia logs.png Acadia logs[wc 1] Acadia logs.png Acadia logs 0
50 Mahogany logs.png Mahogany logs Yew logs.png Yew logs -133
54 Arctic pine logs.png Arctic pine logs Yew logs.png Yew logs -157
58 Eucalyptus logs.png Eucalyptus logs Yew logs.png Yew logs -584
60 Yew logs.png Yew logs Magic logs.png Magic logs 213
75 Magic logs.png Magic logs Elder logs.png Elder logs 8,455
90 Bamboo.png Bamboo Golden bamboo.png Golden bamboo 2
  1. ^ Effect triggers but does not change the log.

Unaffected items


MaterialRarityPerk ranks with X materials
Dextrous components.png
Dextrous componentsUncommon11–21–21–31–3
Oceanic components.png
Oceanic componentsRare11–21–22–32–3
Protective components.png
Protective componentsUncommon11–21–21–31–3
Padded parts.png
Padded partsCommon011–21–21–2
Fortunate components.png
Fortunate componentsRare11–21–21–31–3

Suggested gizmos

Gizmo layout Possible perks
Oceanic components.png
Oceanic components.pngOceanic components.pngOceanic components.png
Oceanic components.png
  • Polishing.png Polishing 2–3


  • Prior to a hotfix on 27 July 2016, if polishing triggered on a sillago, it would upgrade it to a wobbegong and cause the fishing spot to instantly deplete - it was treated as if you fished the last wobbegong from a wobbegong spot, not like you caught a sillago from a sillago spot [1]


  1. ^ Jagex. Mod Shauny's Twitter account. 16:56 27 July 2016. Mod Shauny: "#RSHotfix - Polishing will no longer upgrade fish to Wobbegong via fishing spots in the Arc. (This instantly depleted the spots before) ... Wobbegong fishing spots work differenly so when the perk upgraded it changed the spot hence why it instantly disappeared, there is no viable fix for this currently, but the Perk will work when catching a mid-tier > high-tier fish."