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Pin Badge is a Blue tool that you can equip to your crest in Hollow Knight: Silksong. Check out how to get Pin Badge, its location, and its effects here!
List of Contents

Before heading to Mount Fay, players must visit the Pinstress first in her house in Blasted Steps. She's located to the left of Blasted Steps, where players will have to reach before making it to Sands of Karak.
Talk to her and meet her there first as she won't appear in Mount Fay without this.

To get the Pin Badge, head to Mount Fay and climb the vertical section all the way to the top center, just above the path on the left. You’ll meet the Pinstress here, but be sure to prepare before approaching her.

Keep in mind that you can only meet the Pinstress at this location if you’ve reached Act 3. Otherwise, she won’t appear, and you won’t be able to challenge her for the Pin Badge.

Once you’re there, simply defeat the Pinstress, and she’ll reward you with the Pin Badge afterward!
Equipping the Pin Badge reduces the charge time when performing a Needle Strike. The Needle Strike is one of the Silk Skills you can unlock early, and you can learn this ability from the Pinstress as well, but in the Blasted Steps instead of Mount Fay.
True, did the exact same as u did. Afterwards checked in her home and wanted to leave the exact comment XD. It's even a quest, how could they forget...