Description
Great Oak Curated Industrial Equipment:
Part of our industrial collection, selected for durability and performance.
Features & Details
- Powerful & Fast Drilling: This core drill features a robust 1800W motor and dual-speed settings (1075 RPM/2300 RPM), delivering fast, efficient drilling. It handles holes up to 8 in (200 mm) with a 1/4-7 in threaded output shaft—ideal for tough tasks.
- Superior Hole Quality: Our diamond core drilling machine features both wet and dry drilling modes. The wet drilling option flushes debris and cools the bit with water, reducing dust and enhancing hole smoothness—ideal for indoor renovation applications.
- Enhanced Security & Stability: The built-in clutch automatically stops the drill upon encountering hard resistance to protect both the operator and the core drill machine. Additionally, the water-seal-free design eliminates common water seal failures, ensuring uninterrupted workflow.
- Built to Last: Crafted with a lightweight yet tough aluminum body, this core drill rig resists wear and tear while minimizing operator fatigue. The reinforced PVC water hose is crack-resistant, and the steel output shaft ensures consistent accuracy.
- Professional Kit: Comes fully loaded. This concrete core drill includes four premium drill bits (1 in, 2 in, 3 in, 4 in) that cut through reinforced concrete, brick, marble, and more. It is ideal for all your drilling needs.
Technical Specifications
| Item Model Number | Z1Z-CF03-80S |
|---|---|
| Type | Handheld & Stand Combo |
| No-Load Power | 700W |
| Max Load Power | 1800W |
| No-Load Speed | 2-Speed Adjustable—1075 RPM (1st), 2300 RPM (2nd) |
| Stroke | 15.7 in/400 mm |
| Max Drill Bit Diameter | Φ7.9 in/202 mm (No Interference with Stand) |
| Output Shaft Size | UNC1 1/4-7 External Thread |
| Water Inlet Size | Mesh Tube Fitting, OD 0.6 in/16 mm |
| Included Drill Bits | 4 Pieces |
| Brick Drilling Capacity | Max 8 in/200 mm |
| Concrete Drilling Capacity | Max 3.1 in/80 mm |
| Net Weight (Machine Only) | 35.9 lbs/16.3 kg (With Stand) |
| Net Weight (Including Accessories) | 55.1 lbs/25 kg |
| Product Dimensions (L x W x H) | 14.4 x 8.3 x 31.7 in/365 x 210 x 805 mm |
Detailed Overview
Core Drill Power You Can Trust – Drill Deeper, Faster, Smarter


This core drill packs an 1800W motor with adjustable dual speeds—1075 RPM/2300 RPM—to handle both small and large holes with ease. With a max drilling diameter of 8 in (200 mm), it’s built to tackle demanding projects.
Key Features

Security Clutch
Stay protected while you work. The core drill’s built-in security clutch disengages automatically when the bit jams, reducing kickback and helping avoid wrist injuries.

Overload Protection Device
Work with confidence. The diamond core drilling machine automatically shuts off when overloaded to avoid motor burnout, keeping your equipment safe and long-lasting.

Efficient Heat Dissipation
An internal cooling fan keeps things running smoothly—even during extended, high-powered use. Your core drill machine stays cool, and your workflow stays uninterrupted.


Note: Great Oak specializes in sourcing high-performance industrial tools. Manufactured by VEVOR.










































Verified Customer –
its great tool . i have drilled 10 4″ holes 8″ thick . its heavy duty. never waverd
Verified Customer –
Good tool. I have the 1800 rpm unit and the bit ran true so it was relatively easy to start the hole with a smooth running machine.
Once the hole the hole was started I went through 14″ of concrete in 10 minutes.
The ways and wear surfaces on the movable part of this drill press are well done.
I bought a garden-hose-thread to 5/16″ hose barb adapter from Lowe’s and used a valve at the hose end to control the flow rate. The pressure at my site was too high for the flimsy hose provided, so I cut the pressure down before the little hose.
Happy camper.
Verified Customer –
Works great
Verified Customer –
Very impressed outstanding strong drill
Verified Customer –
Delivery was great. The price is phenomenal.(the last one I bought back in 2004 was an Ebianstock and that cost me around $1300…. so 250 is pretty sweet! That all being said do not I repeat do not lock the trigger!!!!! this is not like your traditional horror drill. There is no clutch so when it hangs up, you’re gonna go for a ride… I know because it almost knocked me the fuck out!!! my fault not the tools!
Verified Customer –
It’s so beautiful and strong machine I really recommend to anyone who looking for this
Verified Customer –
The drill worked great for 5″ boring on block walls dry and a 14″ wide concrete wall wet. The hose connection and tubing that come with the drill for wet use do not connect to any US connections. You have to get your own adaptors. The shoulder rest screws in with the rubber cover removed and that is not clear in the instructions. It also needs to be removed for the drill to go back into the plastic carrying case. Bottom line it worked great and exceeded my expectations.
Verified Customer –
I BOUGHT THIS DRILL TO CORE THROUGH ROCKS IN A CUSTOMERS SWIMMING POOL, SOME HOLES OVER 36 INCHES DEEP.
DRILLED THROUGH 6 LIKE THIS AND IT WAS FLAWLESS. HAD TO BUY THE EXTENSIONS THROUGH ANOTHER SITE BUT THAT WAS NO PROBLEM. THIS BABY MADE ME A TON OF MONEY. PAID FOR ITSELF 10 TIMES OVER.
BUYING ANOTHER 2 JUST TO HAVE THEM.
A++
Verified Customer –
Good price and fast delivery.
Verified Customer –
Product is perfect for what we use it for. Coring 2”-4” holes to set handrail posts. Highly recommend
Only issue is getting what is needed for the constant water flow hook up but manageable and still works great