JINGLING 4Pcs 13 16 20 25 mm Diamond Coated Hole Saw Drill Bits Set for Stone Granite Marble Ceramic
Product Specification
Product Name: Diamond tip masonry bit, Stone cutting bits, Granite hole bit
Hole/Outer diameter: 13, 16, 20, 25mm (1/2", 5/8", 3/4", 1")
Shank diameter: 6.5-8mm
Rim thickness: 1.3mm
Drilling depth: 29mm
Quantity: total 4 Pcs
Features:
Brand New & High Quality
Easy to use, Good Performance and long life
Excellent for making clean and accurate hole on stone, granite, marble, tile
Works better with a electric drill( Excluding in this item)
Drilling speed: Drill a Holes 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
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 Can List Any Size( Hole Diameter from 6mm - 160mm) & Amount Of This Product
We will send out your order within 1-2 days after payment has been received and cleared