The diamond coated hole saw suitable for use in drill hole on glass, marble, tile or granite
Product Name: Diamond tip drill bit, Glass hole saw bit, Glass drill bit
Hole/Outer Diameter : 4mm (close to 5/32")
Total length : 50mm (2")
Drill depth: 10mm (3/8")
Shank diameter: 3.5mm
Quantity: Total 20 Pcs
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
We Can List Any Size & Amount Of This Product: Hole diameter from 0.4mm to 230mm
Please add the water to cool the drill bit while drilling hole process
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/stone.
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
We will send out your order within 1-2 days after payment has been received and cleared 