PEC Sliding T-Bevel
I "discovered" PEC tools of California and was so impressed I bought some of their stuff to put it to the test of daily use. I am still impressed and I now recommend PEC's premium line of layout tools. I really like their sliding T-Bevel. A sliding T-bevel is used for both laying out and transferring both inside and outside angles. This PEC model also fits nicely in my hand.