Chisel
device · 3000 BC · Ancient world
A tool for removing material by striking or pushing.
What it is made of
- Chisel blade — has part. A sharpened steel plate.
- Handle — has part. A wooden or plastic handle.
Principles and materials it uses
- Wedge — uses. The cutting edge is a wedge.
- Steel — is made of. Steel.
- Copper — is made of. Ancient chisels were copper, then bronze.
Where it is used
- Hand plane — is part of. A plane’s blade is a chisel held in a stock.
- Tunnel — is used in. Hezekiah’s Tunnel was cut by hand with chisels.