Diamond Core Drill BitThis professional diamond core bit with a saw blade is high-frequency welded, providing a rapid and clean drill. 5/8"-11 universal thread is suitable for multiple machines, apply to concrete and brick. Efficient & Smooth Cutting Engineered For Exact Fitting Humanized Structure Simple Operation.

• Premium Diamond Material: The core bore drill is made of high-quality diamond and aluminum alloy. Selected diamond and high-frequency welding technology can ensure a longer working life.
• 5/8"-11 Universal Thread: 5/8" universal thread is compatible with most types of machines. You can install the drill on a diverse rig.
• Long Useful Length: These core drill bits are equipped with 14-inch barrel depth for deeper hole drilling. As a result, improve working efficiency and expand the scope of application.
• Stable Concentric Shaft: Three in one concentric shaft design can provide stable operation and fast drilling, more effective than an ordinary hole drill.
• High-frequency Teeth Welding: The sawteeth of the concrete hole saw are high-frequency welded, toothed design is more sharp and wear-resistant.
• Extensive Use: The diamond tip hole saw is designed for drilling hard concrete, masonry, hard brick, and other hard materials.

• Model: KZ4-10
• Material: Diamond & Aluminum Alloy
• Bit Diameter: 4 in / 101 mm
• Useful Length: 14 in / 355 mm
• Total Length: 15 in / 400 mm
• Adaptor: 5/8in-11
• Item Weight: 11 lbs / 5 kg

• 1× Diamond Core Drill Bit
• 1× Blade

• Efficient & Smooth Drilling: This diamond core drill comprises premium aluminum alloy components, and high-quality diamond grits ensure longer coring life. Diameter: 4"/101mm, Useful length: 14”/355mm.
• 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.