68-216
Adapter: 7/16in (11mm)
Shank: 5/16in
Fits Carbide Cutter(s): 64-080 (8mm)

68-215
Adapter: 7/16in(11mm)
Shank: 1/4in
Fits Carbide Cutter(s): 64-060 (6mm)

68-214
Adapter: 7/16in(11mm)
Shank: 3/16in
Fits Carbide Cutter(s): 64-045 (4.5mm)

68-213
Adapter: 7/16in(11mm)
Shank: 1/8in
Fits Carbide Cutter(s): 64-030 (3mm), 64-030L (3mm Long Version)