Not all edges are created equal and this unique hold proves it. The curved and tapered edge is about 18mm and 30 degrees incut at its best spot. Channel your try hard and add this beauty to your board.

As always, lumber sourced from local arborists. 

20mm depth

5" across

Anodized aluminum washers

Spalted Maple

Suggested hardware (not included):

(3) 2 1/2" screws