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Your cart is empty. JINGLING 20mm 3/4 inch Diamond Hole Saw Drill Core Bit for Marble Stone Granite Tile
Description:
New Professional diamond marble hole saw core drill, made of high quality diamond with precision drilling speed and long life use
Product Name: 20 mm sintered diamond core drill bits, 3/4” inch diamond sintered bits
Hole/Outer Diameter: 20mm (close 3/4” inch)
Inner Diameter: 15.5mm (close to 5/8")
Shank Diameter: 10mm (3/8")
Total Length: 83mm (3-/5/16")
Drill depth: 50mm (2")
Recommend Speed: 2080-3140 rpm
Quantity: 1 Piece
Material: Metal, diamond
Color: Gold Tone
Application: Mainly used for drilling Stone, Marble, Granite ,Rebar Concrete and other hard material
Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers, and vanities
We don't recommend drilling holes in smooth ceramics and glass, because it is difficult to complete the drilling operation, and the edge of the hole will chipping
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
How to use a hand drill to drill holes in the stone/tile?
Step 1. The bit on the stone/tile 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 finally, the technique requires a "wobble" of the drill rather that steady pressure straight on
The other considerations are depth, if you go more than the 1" or so the bit allows you will need to stop drilling and take a cold c
Kevin
Reviewed in the United States on July 2, 2023
Cut through 2” thick aggregate concrete in about 15 minutes … and that was using a (very old) standard power drill.Great value for money.
A Randolph
Reviewed in the United States on May 29, 2023
I purchased the stone core drill bit to drill a hole in my granite countertop. As the photo shows, the bit failed before completing one hole. Poor quality materials used in constructing this bit. It failed the first time used.
vasyl
Reviewed in the United States on November 14, 2023
Good
halfdiamond
Reviewed in Canada on September 24, 2022
This is a quality product. It was used to drill holes in stone which was used to mount product handmade by a potter. Both the potter and the stone mason were very pleased with the quality.
Louis
Reviewed in Canada on July 21, 2021
Used by my trades to drill through porcelain tile and concrete floor beneath. They commented that it was good quality but and asked where they can purchase directly. Exact size required to drop in stainless steel sleeve for “Fantom Doorstop”(purchased on Amazon)
D. Fedge
Reviewed in the United States on June 9, 2021
Well I got the 4 holes I needed, but it took a really long time and both drill bits are destroyed. Drilled through 1.5 inch granite. I originally tried keeping the bits wet but that seemed to halt any progress. It wasn't easy, but eventually got the holes drilled. Wish I used something else.
Abbott
Reviewed in Canada on April 22, 2021
When this bit arrived I thought the lack of abrasive was going to make it a brutal product............but when I put it in my 18V drill and put it on the brick to drill for my hose bib it dug right in and burned down to full depth in just a couple of minutes. I was blown away with the effectiveness.The ONLY issue I have with all of these products is length. I was unable to get through the 4 inch brick. Max cutting depth is about 3 inches after core removal. What would it cost to add another inch to the extension........ Come on China.......get your act together
Customer
Reviewed in the United States on August 27, 2019
didn't have room to use my Bulldog roto hammer bit for five holes that I needed to drill in the side of a concrete slab. Thought about buying $200+ right angle attachment for the roto hammer but it got bad reviews. Used this bit with my cordless drill and was able to bore 5 holes in about 20 Minutes. Dunked the bit in a tub of water periodically to cool it, otherwise drilled without use of water. Pretty much used up most of the life of the bit, but it performed admirably given the circumstances! Great value for $11!
Steve Houghton
Reviewed in Canada on July 3, 2019
works good
Java developer
Reviewed in the United States on December 22, 2018
The drill bits arrived quicker than planned. I needed to drill through stone in a condominium. I don't know the type of stone but it was very hard and not drillable with a masonry bit. The bits drilled through about 1/2 inch, but burned out after that. It may be that I didn't cool them off with water often enough. I'd recommend buying more than one set if needing to drill an inch or more through very hard stone. They were definitely more effective than a masonry bit which I tried first.
Miguel
Reviewed in Canada on January 3, 2018
Inexpensive for a hole saw but durability for my purpose (granite) is poor -- doesn't last as long as diamond hole saws or good masonry bits available locally.
Island Art Group
Reviewed in the United States on June 24, 2017
Better than most of profesional bits on the market and it's the price that you can't beat. Drill through porcelain tile like hot knife through butter. I'm looking for different sizes just to put in my tool box for fun.
Moral Lizard
Reviewed in the United States on December 27, 2017
The product arrived on time and was as described. I wanted to drill a hole on the granite countertop to install an iSpring water filtering system. It did the job, and I was quite satisfied with the result - a clean finished hole. As explained by many in youtube videos, drilling on granite takes time. So, one has to be a little patient. But it was not too bad from my own experience, thanks to the youtube videos which set my expectation right going into the project. Overall, I have no complains.
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