Model 100 3-point hitch post hole digger for Category 1 and 2 tractors. Fast post hole digging with convenient, safe operation from the tractor seat. Heavy duty gear box and driveline. Quick connect to 6 spline PTO. Standard duty rating. Carbide, replaceable cutting edge with spiral tip point included. 6″, 9″ and 12″ augers available. Top Link Pin Diameter: 3/4″. Lift Arm Pin Diameter: 7/8″.