Did my own double undercuts with a dremel, not the prettiest, but effective, and that's what counts; anyways the picture turned out well lol : r/Glocks
4300-9/64 Dremel | Tools | DigiKey
Dremel® Partners with Scrub Daddy® to Create an Enhanced Cleaning Tool and Accessories Line to Help Users Tackle Cleaning Projects with Ease
231 Dremel | Tools | DigiKey
First time with a dremel : r/Glocks
Planer Attachment for Dremel Style Power Tools, Carbide Cutter, Dremel Planer, Plane Wood, Carving, Hobby, Chamfering - Etsy