Wet Diamond Core Drill Bits for Concrete and Stone

Extendable High Performance Wet Core Drill Bit – 14″ Drill Head / 6 inch / 1-1/4″-7 – High performance wet core drill bits with increased diamond quality and even more optimized bonding to achieve high drilling speed with smooth operating experience. Best performance during drilling medium hardness concrete and rebar reinforcements. Extendable by attachable tubing that increases barrel length. Each drill head is 14″ long, and each extension tubing adds 12″ to the total drilling depth.