Diamond Core Drill Bit 0.1m with Pilot for Hard Concrete, 2.6 kg, 5/8"-11 Thread

Core Drill Diamond Dry Coring Bit 4" with Pilot Bit for Hard Concrete
Premium Diamond Grit
5/8"-11 Universal Thread
Quick Chip Removal Hole
Flawless Kit
High-frequency Teeth Welding
Extensive Uses
Bit Diameter: 4 in / 101.6 mm,Model: COREDRILL4IN,Material: Diamond & Aluminum Alloy,Bit Depth: 9.5 in / 241.3 mm,Net Weight: 5.7 lbs / 2.6 kg,Thread: 5/8 in - 11