I am modeling a 3-flute drill bit and I would like to add relief angles for the cutting flutes and cutting edge. I am attempting to do this by selecting the edges and clicking the chamfer feature. However, I keep getting the error, "Could not build chamfer due to geometry conditions. Please check if the selected geometry and parameters are correct. Try turning on the tangent propagation option." I have the tangent propagation option selected. I've attached the model for your convenience. Any help or advice would be greatly appreciated. Thank you!