Kraft Tool Concrete Groover CF315PF 6 Inch Bronze Hand Tool (1 4 Inch Radius 1.5 Inch Deep Bit Control Joint Finisher ProForm Grip) PTO Generators Equivalent Metric) Extraction Socket Equivalent Metric) Extraction Socket Material Chrome Molybdenum Alloy Steel (Cr Mo) Impact Driver Bit Material High Tolerance S2 Tool Steel Plier Adjustment Mechanism Auto Bite One Handed Automatic Lever Socket Drive Connection Options Internal Square Drive and External Hex Base Extraction Torque Performance Up to 5X Torque Output and 10X Impact Life vs High Capacity Dual Flute Evacuation: Deep dual flutes rapidly eject large wood chips away from the cutting spur to prevent bore packing and motor bog down 5 inch deep groove into fresh concrete to manage internal slab stress in thick structural pours Kraft Tool 6 Inch Bronze Canadian Deep Bit Concrete Hand Groover