4pcs Open-Hole Drills 2.2''/3''/ 4.02''/ 4.72'' With Standard Thread M22 Water Drill Bit Hole Opener Concrete Drilling Artifact
Application
This product is suitable for drilling holes in hard concrete, block, brick, masonry, and other materials, and can be used for air conditioner installation, range hood installation, roadbed construction, engineering bridge drilling, and sewer drilling.
Specifications
Style: Modern
Shape: Column
Color: Green
Material: 45# Steel
Surface Treatment: High-frequency Welding
Cutting Method: Dry/Wet
Blade Teeth: Turbo Tooth
Thread: M22
Number of Pieces: 4
Segment Height: 10mm/0.39 in
Max. Opening Depth: About 33cm/ 13 in, 31cm/ 12.20 in
Opening Diameter: 5.6cm/ 2.2 in, 7.6cm/ 3 in, 10.2cm/ 4.02 in, 12cm/ 4.72''
Product Height: 37cm/ 14.56 in, 35cm/ 13.78 in
Package Included
4* Open-hole Drills
Notes
1. Please refer to the product specifications in mm units.
2. Please note that the thread diameter of the drill is M22. Please make sure your product can use M22 thread diameter before your order.
3. Please note that this product can not make holes in land wood and stone.
4. Please note that it is used dry for punching brick walls and with water for reinforced concrete. Water must be added during use in wet environments.
5. Please do not use excessive force or shake the drill while working.
6. If you find it difficult to drill, please take a short break and have it checked.
7. Please note that do not use impact or hammering mode! Electric hammers and impact drills are not recommended.
8. Please note that this product is only suitable for hand-held water drilling machines and desktop water drilling machines. Use with other machines need to add the adapter, but this case can only hit the brick wall and can only be used by small models.
9. 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.
Key Features
Sturdy and Durable: The product is made of high-quality 45# steel, using high-frequency welding technology, with high strength, wear resistance, and long service life.
Wide Application: 4 pieces of drill bits with diameters of 2.2'', 3'', 4.02'', and 4.72'' can meet your different opening needs.
Powerful Function: With a maximum opening depth of about 13'' and 12.20'', this product has been tested to penetrate a concrete block with a thickness of 8.66'' and four 14mm rebars inside in about 4 minutes and can drill 40 holes. Using hand-held drills can take 3-4 minutes to penetrate a brick wall (for reference only, different operating conditions will affect the working life of the drill).
Thoughtful Design: The turbo tooth design of the knife teeth is sharper and more wear-resistant, and it is faster in use. It allows air and water (when wet) to enter the bit while drilling and exports dust, helping to cut and core faster, improving your work efficiency.
Good Compatibility: With standard thread M22 and hexagonal fittings, it is easy to work with different handheld water drilling rigs and benchtop water drilling rigs.
Ready to Use: When you receive the product, you can directly install it to the machine (not included) according to your need and use it, which is very convenient!
Details
Removable Tail: It is easy for you to remove to dump the dusty waste inside.
Elongated Body: It is easy for you to hold and saves more effort when using it.
How to Use
1. Fasten it correctly to the machine.
2. Turn on the machine and let the drill rotate in the air to check for balance problems.
3. Hold the machine firmly and apply gentle pressure.
