30mm 1-3/16" Sintered Diamond Core Drill Bits Hole Saw Masonry Tools for Stone

Description

Diamond Hole Saw Drill Core Bit Diameter 30mm 1-3/16" inch for Marble Stone Granite
New Professional diamond Marble hole saw core drill, made of high quality diamond with precision drilling speed and long life use
Product Name: Sintered diamond core drill bits, Diamond sintered bits
Hole/Outer Diameter: 30mm (1-3/16" inch)
Inner Diameter: 24mm
Drilling Depth: 50mm (close to 2" )
Total Length: 89mm
Quantity:  1 Piece
Material: Metal, diamond
Color:  Gold Tone
Application: Mainly used for drilling Marble, Granite ,Rebar Concrete and other hard material.
Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers, and vanities
Method of Use: Use Wet or Dry
To prolong its using life, must use with water for cooling and lubrication.
Gold paints on the body of this bit to avoid getting rusty.
Feature drilling stably, fast speed, not breaking the border
The hole saw can be used with Bench drill, hand electric drill.
When you using hand electric drill, start slowly, 45 degree angle, go vertical after you make an initial mark
Just a friendly reminder: Please add the water to cool the drill bit while drilling hole process
How to use a hand drill to drill holes in the stone?
Step 1. The bit on the 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 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.
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