How to distinguish a quality chisel?

It is impossible to determine the quality of a bit just by looking at it. However, keep in mind that the quality of the tool will depend on the following:
	The quality of the metal (for example, the composition of the steel).
	heat treatment process.
	The quality of sharpening the bit was subjected to sharpening.
What is heat treatment?
	The heat treatment process can determine the job for which a piece of steel can be used.
	Only steel hardened to certain temperatures is suitable for a chisel. Steel can still be useful when tempering at different temperatures, but already like other tools and fixtures.
	To make sure a cold chisel is heat treated and sharpened properly, try using the tool to cut off a piece of softer metal. If the bit is ineffective (or damaged), it may mean that the bit needs to be refinished or sharpened.
What else can affect the quality of the chisel?
	In addition, some bits can be forged or made from chrome vanadium steel.
	Both stamping and the use of chrome vanadium steel increase the reliability of the tool, improving its quality.
What is "BS 3066: 1995 Specification for Engineering Bits and Related Tools"?
	By purchasing some construction and cold chisels, you can ensure that the product meets BS 3066: 1995 specification for engineering bits and related tools. This is a technical standard developed by the British Standards Institution. Sometimes other standards and organizations may be listed instead.