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

Drilax Diamond Hole Saw Diamond Drill Bit

How to Use Diamond Drill Bits

Keeping Diamond Hole Saws Cool and On Target

How to Use Diamond Hole Saw

How to Use Diamond Drill Bits

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. You can also visit our Amazon Store

What is a diamond drill bit?

We usually start giving instructions and tips about tools before we address a simple question: What is a diamond drill bit? A diamond drill bit is nickel coated metal circular piece (a tube) with a shank for the drill. The rim of the circular tube is coated with artificial diamond abrasive particles. And these diamond abrasive particles do all the work. Although these tools are called drill bits, the main working principle 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. The first image below shows how the grinding away starts.

What is a diamond drill bit

Removal of a core plug of quartz

 

How long does a diamond drill bit last?

One of the main differences between a regular drill bit and diamond drill bits: you can not sharpen diamond drill bits. Diamond drill bits will last as long as you keep the diamond abrasive particles on the rim of the bit. There are two kinds of diamond drill bits:

1- Electroplated Diamond Drill Bits

These type of diamond drill bits are often considered as light to medium duty tools. The diamond abrasive particles adhere to the rim with a metallic bond. If the tools are overused or abused, the increased temperature will cause the bond to break. The diamond abrasives will be gone and the diamond hole saw rim will have no grinding action left. You can not sharpen or reattach the diamond particles. If the diamond drill bit is used properly, it will last a long time and will serve very well. Please see our posts on how to use diamond drill bits keeping them cool and on target. One of our previous customers posted a comparison of two Drilax diamond drill bits, one of the unused and the other used 4 times.

 

2- Heavy Duty Sintered Diamond Drill Bits

The heavy-duty type diamond drill bits, diamond hole saws have the diamond abrasives embedded in the metal itself. There are no visible diamond particles on the rim. These types of tools will last hundreds of times and they could be used dry. However, we always suggest using water for better performance. In this picture below, you can see one of our heavy-duty diamond hole saw for concrete or masonry drilling.

Concrete Hole Saw

These Drilax Heavy Duty Concrete Hole Saws can be used with regular drills because they have standard 3/8 shanks for standard chucks.

2 inch Diamond Hole Saw for Concrete

In addition to these models, we also have Professional Series Heavy – Duty Diamond Hole Saws for very deep drilling.

Drilax Concrete Diamond Hole saw

Using 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

How much are diamond drill bits?

We have a very wide range of sizes, depth of cut, and types of tools. The average price of a diamond drill bit if purchases in a set could be as low as 2 dollars. We also have monster size diamond drill bit holes saws with 6, 7, 7-1/2, 8 inches diameter, their prices can be over 100 dollars.

How to make lamps out of wine bottles?

Please refer to our post about this topic.

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