Preheat oven to 375F.
Prepare baking sheet with a baking mat or parchment paper.
In a medium bowl, combine the flour, cocoa powder, brown sugar, granulated sugar, baking powder, and salt.
Stir to combine. The mixture will be uniform when ready.
Use a fork or pastry blender to cut in the butter and coconut oil. The mixture will resemble crumbly lumps. This should be done as quickly as possible so the butter and oil don't start to melt. It might take around 3 minutes to get the butter thoroughly blended in with no large clumps remaining.
Add milk to the mixture and stir gently just until combined. It will look dry and crumbly and that's okay.
Move dough from bowl to baking sheet and form a rounded loaf. Be careful not to work the dough too much because the heat from your hands will melt the fats.
Divide the loaf into 8 wedges with a floured knife. Do not cut all the way through the bottom. Stop about 1/2 inch from the liner.
Top with all of the chocolate chips and press them gently into the mounded dough.
Bake for 20 to 25 minutes at 375 until golden brown.
Serve Double Chocolate Scones warm from the oven.