Here’s the link to the blend file for the brush, hope it works. It’s the first time I share something with google drive so if you can’t download it please let me know. You can append the brush from this file into your own. The blend file is bit large because I contains a sculpted mesh. In the picture below you can see the difference between my brush on the left and the crease brush on the right, they have the same strength. I added one brush with a small bevel on the edge as show below and one with a more sharp edge.
https://drive.google.com/drive/folders/1_-JFzdQZQaXdAP3FcGc_t0ekG5GxAC4Q?usp=sharing
