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【Powerful Motor】Built with a high-performance pure copper motor, delivering reliable power (4250W) and no-load speed (500rpm). Maintains stable performance even during intensive drilling operations, making it the ideal choice for professional engineering projects.
【Efficient Heat Dissipation】Multiple ventilation holes combined with a water pipe design enable rapid heat dissipation, preventing high-temperature damage and extending service life.
【Versatile Application】Capable of drilling up to 10-inch diameter holes, meeting the drilling requirements for most air conditioning ducts.
【Adjustable Depth Control】Featuring a user-friendly lifting handle and precise lifting rack, this drilling machine offers the flexibility to achieve precise drilling depths (deepest drill: 3.3ft, lifting height: 19.7in), catering to a wide range of project requirements with ease.
【Assembly in a Breeze】Complete accessories, a simple structure, and a clear English manual allow you to install it in a short time.
【High Safety】The built-in mechanical safety clutch will not reverse and hurt people when hitting hard objects. The overload protection switch can automatically trip when the load is too large, to protect the motor from burning.
【Application】The product is only suitable for wet drilling. Both reinforced concrete work and wall work can be well done. It is suitable for equipment installation, water and electricity, gas installation, civil construction quality inspection, airport runway, highway, railroad, railroad bridge-tunnel, and other construction, quality inspection, and installation field.

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Description
The diamond core drilling machine is engineered to deliver exceptional performance and precision for professional drilling applications. Equipped with a powerful 4250W copper motor and a no-load speed of 500rpm, this product provides an excellent power source for your drilling work. With a drilling diameter of up to 10in, it offers excellent drilling performance. In addition, it also has a highly safe mechanical clutch and overload protection switch settings, which can well protect your safety.
Details
Long Power Cord & Water Pipe: An 11.5ft long power cord and 4.9ft long water pipe can reduce use restrictions and increase safety.
External Carbon Brushes: The external design of the carbon brushes allows you to check its use at any time, which is convenient to replace the carbon brushes.
Aluminum Water Inlet: Aluminum water inlet is sufficiently rust-proof and solid even if it is in contact with water for a long time during operation.
Independent Power Switch: It is in the center of the machine, more convenient to operate, and improves the safety of the operation.
Specifications
Model: OB-255
Material: Copper, Aluminum, Iron, Plastic
Color: Red, Silver, Black
Style: Modern
Type: Vertical
Assembly Required: Yes
Motor Type: Pure Copper Motor
Plug Type: US Standard
Power Source: Corded Electric
Voltage: 110V 60Hz
Power Input: 4250W
Largest Drill Diameter: 255mm/10in
No-load Speed: 500rpm
Lifting Height: 50cm/19.7in
Deepest Drill: 1m/3.3ft
Water Pipe Length: 1.5m/4.9ft
Power Cord Length: 3.5m/11.5ft
Gross Weight: 25kg/55lbs
Product Size: 18*16*92cm/7.09*6.3*36.22in
Package Size: 94*36*24cm/37*14.2*9.4in
Package Included
1* Diamond Core Drilling Machine
1* Water Pipe
2* Carbon Brushes
1* English Manual
Other Accessories for Use
Notes
1.Please read the manual carefully before use, especially paying attention to safety precautions.
2.Beware of electrical safety hazards and take necessary personal protective measures when using such tools. Please keep the product out of reach of children.
3.This machine is not recommended for drilling holes larger than 10 inches in diameter.
4.Please note that this machine does not include a drill.
5.Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.

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