Precision Engineered Design:For 4.25" Wet、2" Wet options,our core drill bit is designed with universal 1-1/4"-7 thread.For 2.5" Wet/Dry、4" Wet/Dry、1" Wet、4.25" Wet/Dry、1-1/4" Wet options,our core drill bit is designed with universal 5/8"-11 thread.Making it easy to quickly assemble onto standard core drilling equipment, providing versatility and convenience. 

Dust-Free Wet Cutting:For 4.25" Wet、1" Wet、、1-1/4" Wet、 2" Wet option, our diamond core drill bit reduces dust production through water cooling and lubrication, making it crucial for indoor or enclosed workspaces, minimizing dust pollution to operators and the surrounding environment. 

Dual-Use Wet and Dry:For 2.5" Wet/Dry、4" Wet/Dry、4.25" Wet/Dry、our diamond core drill bit is suitable for both dry and wet cutting conditions. Dry cutting provides faster speeds, while wet cutting reduces dust, catering to various project needs. It's simple to operate with high flexibility. 

Perfect Kit: Our concrete core drill bit includes an additional 3.15 in / 80 mm diamond saw blade for cutting tasks, eliminating the need for separate purchases. It allows for quick and efficient cutting of various hard materials, including rocks, concrete, ceramics, metals, and more. 

Stable and Efficient: Our masonry core drill bit is crafted with high-quality carbon steel components and a diamond-grit head, ensuring it boasts excellent wear resistance and an extended lifespan. Laser welding technology ensures no tooth loss or weld detachment, maintaining cutting efficiency. 

Wide Applications: Our wet drill core bit is ideal for drilling into reinforced concrete, red bricks, concrete, foam bricks, and other tough materials. It is widely used in installations for air conditioning, pipelines, stair railings, highways, airports, and various construction scenarios.  

Package Content(4.25" Wet) 

1 x Core Drill Bit 

1 x User Manual 

1 x 3.15 in / 80 mm Diamond Saw Blade 

Package Content(2.5" Wet/Dry) 

1 x Core Drill Bit 

1 x User Manual 

1 x Adapter 

1 x Pilot Bit 

1 x 3.15 in / 80 mm Diamond Saw Blade 

1 x Hex Wrench 

Package Content(4" Wet/Dry) 

1 x Core Drill Bit 

1 x User Manual 

1 x Adapter 

1 x Pilot Bit 1 x 3.15 in / 80 mm Diamond Saw Blade 

1 x Hex Wrench 

Package Content(1" Wet) 

1 x Core Drill Bit 

1 x User Manual 

Package Content(4.25" Wet/Dry) 

1 x Core Drill Bit 

1 x User Manual 

1 x Adapter 

1 x Pilot Bit 

1 x 3.15 in / 80 mm Diamond Saw Blade 

1 x Hex Wrench 

Package Content(1-1/4" Wet) 

1 x Core Drill Bit 

1 x User Manual 

Package Content(2" Wet) 

1 x Core Drill Bit 

1 x User Manual 

1 x 2.36 in / 60mm Diamond Saw Blade