This package carries (a)-(b):

(a) 1 Piece of B20 Diamond Router Bit for 20mm (3/4") Thick or High stone concrete travertine counterop edge to do Demi / Radius / Roundover Shape Bullnose. With 5/8"-11 Female Thread arbor.

(b) 1 Piece of 3/4" (20mm Diameter) Diamond (Ball End) Finger Milling Bit for stone marble granite porcelain ceramic sink hole cutting / grinding / enlarge (with 5/8"-11 Female Thread arbor).