Pokémon Brilliant Diamond and Shining Pearl: How to get more Digger Drills

In Pokémon Brilliant Diamond and Shining Pearl, Digger Drills are used to build Secret Bases. If you want a spot to put your Statues to improve the chances of specific Pokémon appearing in the Grand Underground while you're exploring it, you'll need these. The Digger Drills are a limited-use item. If you wish to develop more bases during your Grand Underground excursions, you'll need more. In Pokémon Brilliant Diamond and Shiny Pearl, this is where you can get extra Digger Drills.

You'll have to track down one of the Hikers who are wandering the Grand Underground. They can be found by running between the several biomes that exist in this area. Inquire with the Hiker about the 'Get goods' option.

You'll get a list of the Hiker's available items. Digger Drills should be supplied for eight blue spheres. These blue spheres can be mined at the Grand Underground's fossil locations, which are the orange dots on your map. Approach these spots to begin the mining minigame, and ideally, you'll take some spheres with you. There are various different spheres to choose from, including Red, Blue, and Green.

The mining minigames are challenging, but the longer you explore the Grand Underground, the more chances you'll have to collect them and use them to build Secret Bases.