· Efficient & Smooth Drilling: This diamond core drill comprises premium aluminum alloy components, and high-quality diamond grits ensure longer coring life.

· Engineered For Exact Fitting: With 5/8"-11 Universal Thread, this core drill bit allows easy and fast assembling to a standard fixed core or hand-held drilling machine. It is also suitable for various devices.

· Humanized Structure: Our diamond wet coring bit features chip removal holes, highly regular sawteeth, and concentric axes design. The innovative design allows it high drilling performance while keeping a long lifetime.

· Simple Operation: The core drill can be used for both dry and wet to content your work needs. Start drilling at the vertical position and continue to dig deep. A little bit of water can prolong the service life.

· Versatile Uses: Our concrete core drill is designed for drilling concrete, red brick, marble, and other materials on conditions, such as installing air conditioners, pipes, stair railings, highways, and airports, etc.

Specifications - 2.5 Inch
Model: KZ2.5
Material: Diamond & Aluminum Alloy
Bit Diameter: 2.5 in / 63 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 8 lbs / 3.6 kg

Specifications - 3 Inch
Model: KZ3
Material: Diamond & Aluminum Alloy
Bit Diameter: 3 in / 76 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 9 lbs / 4 kg

Specifications - 4 Inch
Model: KZ4-10
Material: Diamond & Aluminum Alloy
Bit Diameter: 4 in / 101 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 11 lbs / 5 kg

Specifications - 4.5 Inch
Model: KZ4.5
Material: Diamond & Aluminum Alloy
Bit Diameter: 4.5 in / 114 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 12 lbs / 5.4 kg

Specifications - 5 Inch
Model: KZ5
Material: Diamond & Aluminum Alloy
Bit Diameter: 5 in / 127 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 13 lbs / 5.9 kg

Specifications - 6 Inch
Model: KZ6 Concrete Core Drill
Material: Diamond & Aluminum Alloy
Bit Diameter: 6 in / 152 mm
Useful Length: 14 in / 355 mm
Total Length: 17.7 in / 450 mm
Adaptor: 1-1/4 in
Item Weight: 13.5 lbs / 6 kg

Specifications - 8 Inch
Model: KZ8
Material: Diamond & Aluminum Alloy
Bit Diameter: 8 in / 203 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 17 lbs / 7.7 kg

Specifications - 10 Inch
Model: KZ10
Material: Diamond & Aluminum Alloy
Bit Diameter: 10 in / 254 mm
Useful Length: 14 in / 355 mm
Total Length: 15.7 in / 400 mm
Adaptor: 5/8in-11
Item Weight: 26 lbs / 11.7 kg

Package Content
1× Diamond Core Drill Bit
1× Blade