1-1/8″ (Dia.) Butterfly Spline Bit

The Butterfly Spline is a beautiful solution for exposed joints. Two passes with this bit produce the concave butterfly spline from your choice of hardwood or softwood. Then use a 14-degree dovetail bit to (sold separately) to produce the mating grooves. For best results use in table-mounted or CNC routers.

Item #

Country of Origin

Carbide Height (h)

Overall Dia. (D)

Minor Height (m2)

Overall Length (H)

Number of Cutters


Shank Dia. (A)