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Instructions on How to Use Diamond Drill Bits – Keeping Cool and On Target

How to Use Diamond Drill Bits

Instructions on

How to Use Diamond Drill Bits

Keeping Diamond Hole Saws Cool and On Target

How to Use Diamond Hole Saw

In this post, we will try to give you some basic DIY information on how to use diamond drill bits and How to Use Diamond Hole Saws. Generally speaking, diamond drill bits – diamond hole saws are used on brittle materials such as ceramics, porcelain, glass, granite, marble, quartz, tiles, etc. To see our selection of diamond drill bits please visit our store.

The main idea behind this is the grinding action. Diamond abrasive particles adhered to the rim of the diamond hole saw grinds away the material in a circle and a hole is formed by removing a core plug.

Removal of a core plug of quartz

Since the diamond abrasive particles adhere to a metallic bond, increased temperature will cause the bond to break and the diamond hole saw rim will have no grinding action left.

That’s why the use of water for cooling the tool is important. Here are ways to keep the tool to prevent overheating:

Build a Small Water Dam

Plumbers putty is great for building a mini water dam around the hole area.

Water Dam Putty

Positioning the diamond drill bit can be a challenge and it is an important part of how to use diamond drill bits. Here are some of the ways you can start drilling the hole:

Start the Hole At an Angle

Pilots drill bits are not useful when it comes to drilling brittle materials. To drill holes in porcelain or ceramic tile, glass or granite,  start the hole at an angle and slowly work it straight.

Starting Diamond Hole Saw Drilling

Drilling Porcelain Tiles

Here is a close up for “starting the diamond hole saw at an angle”

How to use diamond drill bits

You can go up straight, once you for a C Slot cut in the material:

As an alternative, you can use one of our sets that come with a foam insert guide.

Diamond hole saw set with foam insert guide

You can also use our adjustable guide for positioning the diamond hole saw. You can see our instructions on how to use diamond drill bits with guides here.

Drilax Diamond Hole Saw Guide

Perfect Hole in Tile

This is how you can achieve results with Drilax Diamond Drill Bits.

Drilax Diamond Hole Saw Set Guide

 

 

Tub Drain Project

Using one of the larger Drilax Diamond Holes, this project for tub drain is completed. The small hole is for water pipes.

Tub Drain Hole Tiles

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Ceramic – Porcelain Tile Installation

This is probably one of the most popular use of diamond hole saws.  If you have ever been involved in any kind of bathroom – kitchen renovation, this will sound very familiar.  Regular drill bits do not work on tiles. So, you need diamond coated bits. The smaller sizes such as 1/4″ are used for screw holes. The holes that you use for installing grab bars, towel holders, soap dispensers, etc.  The mid sized hole saws such as 1 3/8″ are used for pipe holes or faucet outlets. 

Without these diamond hole saws, contractors used to break tiles and try to make grooves for pipes and faucets.
You can achieve very handsomely clean holes without the mess and hassle of wasted tiles.

What is the Recommended Drilling Speed?

Please see our post on this topic.

This is an example of a small water pool around the hole. You can use play dough or plumber’s putty  to keep water around the diamond hole saw.

The picture above was posted by one of our customers, and this was his first time ever drilling tiles.


There are also some shower heads that need much larger diamond hole saws.  There is a great 5 star review on Amazon. He purchased this large size 4 1/2″ hole saw for rain shower installation.

Large_Diamond_Hole_Saw_Review_1