Not 14 degrees - not even close. The dovetail pin socket was cut with a Hymnorq 3/8" dovetail cutter and the butterfly spline with a Magnate 5401 spline cutter. The Magnate size is very close to 14 degrees. Hymnorq measures about 10.5 degrees. The 4" drill bit delivered gave similar results and also offered a height of cut about 1/32" less than the advertised 1/4" bit.