Dettmore Home Improvements - I don't have a favorite tool for coping. If I'm honest I use a table saw for most of my work but let's talk grinder vs jig saw.
Collins Tool Company Coping Foot - Hand Tool Accessories - Amazon.com
Coping Foot for Jigsaws, High Efficiency Woodworking Tool Compatible with Most Jigsaws - Amazon.com
Collins Tool Company Coping Foot - Hand Tool Accessories - Amazon.com
Coping Foot for Jigsaws, High Efficiency Woodworking Tool Compatible with Most Jigsaws - Amazon.com
ALLY Tools Coping Foot (2 Sets) Jigsaw Attachment – ALLY Tools and Parts