Why are diamonds on saw blades and drill bits?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why are diamonds on saw blades and drill bits?

The Big Idea

Diamonds aren't only for jewelry! They're on saws and drills too. Why?

Hardest

Step one: Hardest. Diamond is the hardest known natural material, so it can cut or grind almost anything. Nothing much can scratch it.

Blades and Bits

Step two: Blades and Bits. Tiny diamonds glued to the edge of a saw blade cut through stone, concrete, and tile. Drill bits tipped with diamonds can reach deep into rock.

Other Crystals

Step three: Other Crystals. Sandpapers use other hard crystals, like garnet and corundum. The crystals wear away the softer material and stay sharp.

A Closer Look

Let's take a closer look! Diamond is hardest. Garnet sands. Corundum grinds. Blades cut.

Quick Facts

Quick facts! Most diamonds used in industry are lab-grown. Saws cut stone. Drills reach deep rock. Workers wear safety gear.

Think Like a Scientist

Now, think like a scientist! Find a piece of wood. Rub it with coarse sandpaper. Then rub it with fine sandpaper. Feel the difference. Which smooths best?

Outro

Diamonds are on saws and drills because diamond is the hardest natural material and can cut almost anything. Diamond blades cut stone and concrete, and sandpaper uses other hard crystals like garnet and corundum. Diamonds are tough workers. They work hard every day. Amazing! Science is amazing! Keep wondering and keep exploring! Share what you learned with someone at home, and see what they think! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!