Tight springs are a reward obtained from various events, including Birth by Fire, Deathbeard's Demise, and Aiding the Exile. They can also be created using the Invention skill. They function in exactly the same manner as springs, but are not tradeable, and are used to either charge or quick upgrade the spring cleaner. When charging the spring cleaner, each tight spring will provide one charge. When upgrading the spring cleaner, each tight spring will be consumed immediately and added to the upgrade process, as if a charge were used.
Assuming Oak shieldbow (u) and Steel scimitar are used, the base cost is 1,796.98 per spring. The average disassembly time for gathering 120 tensile parts and 1 subtle component is 6.88 minutes. If the player could earn 1 million coins per hour via other activities, the total cost per spring would become 7,530.31, making it less economical than buying springs. However, other components gained from dissassembly may make tight springs worth crafting.