Mining speed

Mining speed is an invisible statistic that determins how fast can the player mine. This value is determines only by these values:


 * Tool mining speed
 * Speed modifying prefix on the tool itself
 * Buffs and items specifically increasing mining speed

The tool mining speed is independent of the "speed" value that is displayed on the Pickaxes page. Best speed modifying prefix on a tool is "Light" which increases mining speed by 15%. For tools with mining speed between 6 and 10 (inclusive) or exactly 16, increasing mining speed by 10% gives the same effect due to rounding, allowing the use of "Legendary" prefix or any of the other 10% extra speed prefixes for easier reforge chances (2.5% chance to reforge to Light, but 15% chance for 10% increased speed)

Mining speed can be furthermore improved by up to 70% using following buffs and items: This increase is capped at 70%, even though all items together add 85%.
 * Mining effect from Mining Potion adds 25%
 * Set bonus of Mining armor adds 30%
 * Celestial Stone adds 15%
 * Sun Stone and Moon Stone add 15% during day and night respectively.

Formula
Mining tool speed is improved by the prefix speed value, and then rounded to the nearest number. Then the bonus from items and buffs is applied, and the final value is rounded down.

Example: Light Shroomite Digging Claw has mining speed 3. When Mining (Buff) is active and Celestial Stone is worn, the mining speed is multiplied by 0.6 (40% better than 1.0), and we get mining speed of 1.8 which gets rounded down to 1. This tool will mine 60 blocks per second.

Example: Light Bone Pickaxe has mining speed 9. With Mining (Buff) active and full Mining armor, the mining speed is multiplied by 0.45 (55% better than 1.0), and we get mining speed of 4.05 which gets rounded down to 4. This will be fastest pre-hardmode pickaxe for mining dirt, sand and other easy materials.

Mining speed table
Note: Drills have the same mining speed as pickaxes, except for Orichalcum Drill which is slower than Orichalcum Pickaxe (Speed 10 instead of 8). Additionally the drills cannot be reforge to increase speed.

Fastest mining tools
Pre-hardmode the fastest digging tools are:
 * Light Bone Pickaxe for Dirt, Mud, Sand, Snow and other easy blocks
 * Light Reaver Shark for all blocks more difficult than Dirt (Stone, Meteorite, Obsidian, Ebonstone etc.)

In hardmode, Light Shroomite Digging Claw is the fastest tool, but players can prefer also:
 * Legendary / Quick / Deadly / Agile / Nasty / Light Adamantite Pickaxe or Titanium Pickaxe accessible significantly sooner
 * Legendary / Quick / Deadly / Agile / Nasty / Light Chlorophyte Pickaxe has extra range and should be obtained next
 * Legendary / Quick / Deadly / Agile / Nasty / Light Picksaw is second fastest after the Shroomite Digging Claw and has much higher range

Drills cannot be reforged to increase speed and are therefore inferior to pickaxes