JINGLING 180mm 7″ inch Diamond Tile Hole Saw Glass Drill Bit for Ceramic Stone Granite Masonry Tools

JINGLING 180mm 7.1″ inch Diamond Coated Drill Bit Hole Cutter Saw for Glass Tile Ceramic Marble
Product Name: 7.1″ inch Diamond tip drill bit, 180mm Glass hole saw bit, 180mm Glass drill bit
Product Description:
Hole/Outer Diameter: 180mm (close to 7.1″ inch)
Inner Diameter: 176mm
Shank Diameter: 10mm(3/8″)
Total Length: 55mm (2.16″)
Drill depth: 25mm(1″)
Quantity: 1 Piece
Recommend Speed: 350-700RPM
Use: Masonry Drilling
Material: Diamond, steel
Features
Brand new & high quality
Easy to use, good performance and long life
Excellent for making clean and accurate hole on glass, tile, stone, granite and marble
Works better with an electric drill (Excluding in this item)
Use with water as a lubricant
Drilling speed: drill a hole in seconds
Use with water as a lubricant
It is strongly recommended to install it on a bench drill, and it is not recommended to install it on a hand drill
The diamond hole saw does NOT have center Pilot Drill
There is no need for a Pilot Drill Bit, because pilots are not safe for glass
Quick Tips
1. Please add water for coolant and drill slowly
2. Start drill at 45 degree to surface and align to 90 degree as hole forms
3. Never use drills while machine is in hammer action
4. Holes require no futher work as cutting is clean
We can list any size( hole diameter from 6mm – 160mm) & amount of this product
How to use a hand drill to drill holes in the stone/tile/glass?
Step 1. The bit on the stone/tile/glass 45 degree, open a half-moon notch on it
Step 2. Slowly up the bit to 60 degrees, and then gently drill
Step 3. Reached 90 degrees, continue to drill
Step 4. Drill through the stone/tile/glass finally, the technique requires a “wobble” of the drill rather that steady pressure straight on

Diamond hole saws are made of carbon steel and high quality diamond powdert, make these glass drill bits particularly sturdy, sharp, and durable
Diamond glass drill bits are suitable for drilling holes in glass, marble, ceramic tiles, or granite
Outer Diameter: 180mm(7.1″); Inner Diameter: 176mm(6.93″); Drill Depth: 25mm(1″); Grit: 80 Coarse
NOT have center pilot drill, 3/8 inch hex shank will fit handheld or upright drillers
Product Name: Diamond hole saw set, hole saw for tile, Granite hole saw