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What are centre squares made of?

What are centre squares made of?

Shop for Centre and Edge Finding Sets

Most centre squares are made from ground tool steel. Most centre squares are made from ground tool steel.
Ground tool steel is an extremely durable and long-lasting material. Centre squares are likely to last a lifetime. Ground tool steel is an extremely durable and long-lasting material. Centre squares are likely to last a lifetime if used correctly.
The blade of a centre square is hardened and tempered. This makes it resistant to abrasion. The sharpness of the blade helps the user to quickly locate the centre of a part. The blade of a centre square is hardened and tempered. This makes it resistant to abrasion. The sharpness of the blade helps the user to quickly locate the centre of a part.
Wonkee Donkee says: 'Hardening the steel improves its mechanical properties, increasing its hardness and strength. Tempering further develops these properties and works to relieve the brittleness of hardened steel.'

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