[170mm]

[83mm]

[66mm]

[90mm]

[180mm]

[140mm(5-1  & 2  )]

[200mm(close to 8  )]

[51mm]

[70mm]

[165mm(6-1  & 2  )]

[175mm(close to 7  )]

[68mm]

[100mm(close to 4  )]

[67mm]

JINGLING 63mm 2.5" inch Diamond Drill Bit Hole Saw for Glass Tile Ceramic
Product Name: 63mm inch Diamond tip drill bit, 63 mm Glass hole saw bit, 2.5 inch Glass drill bit
Product Description:
Hole/outer diameter: 63mm (close to 2.5" inch)
Inner Diameter: 61.5mm
Shank Diameter: 10mm (3/8")
Total Length: 55mm (2-3/16")
Drill depth: 25mm (1")
Quantity: 1 Piece
Do NOT Use Dry
Features:
Brand New & High Quality
Easy to use, Good performance and long life
Excellent for making clean and accurate hole on glass, tile, granite and marble
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
Can be used with Handheld or Upright Drillers
Works better with an Upright Drillers ( excluding in this item )
Drilling speed: Drill a hole in seconds
Use with water as a lubricant
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
How to use a hand drill to drill holes in the glass/tile/stone?
Step 1. The bit on the glass/tile/stone 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 glass/tile/stone finally, the technique requires a “wobble” of the drill rather that steady pressure straight on