TCT tipped bits can be resharpened. Set contains a selection of popular bit profiles. Smooth accurate cuts. Sealed bearings. 1/4″ shank. Bits: 1/2″ core box, 1/4″ cove, 1/2″ dovetail, 1-1/4″ 45° chamfer, 1/2″ flush trim, 5/8″ straight, 1/4″ round over, 1/2″ straight, 1/4″ straight, 3/8″ round over, 1/2″ 90° grooving, 5/32″ roman ogee. Supplied in handy wooden storage case.