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The thickness on these bars is precision ground to a tight tolerance.
The thickness, length, and width are oversized for finishing to your exact requirements.
Made from powdered metal, M4 tool steel has a consistent microstructure that gives it outstanding resistance to wear and abrasion. It is comparable to CPM Rex M4.
Also known as blue-tempered steel.
These sheets have a softened temper, which is also known as annealed, so they can be easily formed into shape and then heat treated for spring properties.