Starrett Precision Ground Flat Stock

Starrett Precision Ground Flat Stock is AISI O1 oil-hardening tool steel, ground to tight tolerances for toolmaking, machining, and fabrication work. Machinists use it for jigs, fixtures, punches, dies, gauges, parallels, wear plates, and shop-made tooling. Starrett's reputation for precision measuring and tooling products backs the line.

Key Features:

• AISI O1 tool steel: A general-purpose oil-hardening grade that machines well in its annealed state and can be heat treated for good hardness and wear resistance.
• Precision ground surfaces: Flat, smooth, accurately finished faces cut stock-prep time and give you a dependable reference surface.
• Versatile material: Suited to tool and die shops, maintenance departments, prototype work, and hobbyist machining.
• Heat treatable: Harden and temper it to the hardness your application needs.

Each part number in this line is a different size of the same precision ground flat stock. Pick the one that suits your project.