Oval Shape(shape E) Item No. Cutter Diameter Length of Cut Shank Diameter Overall Length R E0307M06 3 7 6 55 1.2 E0610M06 6 10 6 65 2.5 E0813M06 8 13 6 65 3.7 E1016M06 10 16 6 65 4 E1220M06 12 20 6 65 5 E1625M06 16 25 6 65 6.5