Chisels
From CoMakingSpace Wiki
The term "chisel" is used for many tools that have the same basic shape but are actually very different in their use and exact geometries.
Which one are you looking for?
bevel edge chisels are the most commonly used ones in woodworking
carving chisels can be used for fine details
skew chisels have an angled edge and are used for woodturning
chisel bits can be used with a rotary hammer to shape stone