Robust Woodturning Live Center Cone Set Cone Set includes aluminum tip and reversible 4 Bull Nose Set; fits other manufacturers centers with 3/4-10 threads The tip of the center extends and reverses to accommodate your turning The cup center is threaded 3/410 for standard accessories A 5/16 thru hole accommodates drilling #2 Morse Taper shank is tapped 3/8-16 for draw bar applications