4-1/2″ Prestressed Concrete Diamond Core Bit – Wet

4-1/2″ Crown Style Prestressed Diamond Core Bit – Wet 1-1/4″ Threaded connection 14″ Overall length Soft bond for speed Crown segment design with tight gaps for drilling in heavy reinforced concrete Cap unscrews from barrel for use with Tube Extension for deeper drilling and easy core removal Pro Series Wet Use Only   WDS® Core Bits up to 1-1/2″ come with 5/8″-11 Threads. Core bits larger than 1-1/2″ diameter come with 1-1/4″ Threaded connection