Starrett 57351 A2 Tool Steel Flat Stock 0.75x1.25x36 in

Product Description

The STARRETT 57351 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a precision-ground blank ready for heat treatment. Ground to tight dimensional tolerances, this flat stock ships at 0.75 inches thick, 1.25 inches wide, and 36 inches long, weighing 10.99 pounds. AISI A2 tool steel offers a good balance of wear resistance, toughness, and dimensional stability during air hardening, making it a reliable choice for punches, dies, gauges, and cutting tools. Thickness and squareness tolerances are held to plus or minus 0.001 inches, giving machinists a predictable starting point before any secondary operations.

This flat stock is suited for job shop and production toolroom environments where A2 tool steel is specified by the print. Typical applications include blanking and forming dies, trim dies, precision gauges, and cutting blades in both short-run and production tooling. The 36-inch bar length allows fabricators to cut multiple tool blanks from a single piece, reducing material waste. Width tolerance is held from plus 0.000 to plus 0.005 inches, and length tolerance is plus 0.25 inches, consistent with standard precision ground tool steel stock specifications.

Key Features

• AISI A2 air-hardening tool steel for dimensional stability during heat treat
• Thickness tolerance of plus or minus 0.001 inches for precise blank preparation
• Width tolerance of plus 0.000 to plus 0.005 inches
• Squareness held to all edges at 0.003 inches per inch
• 36-inch bar length supports multiple blanks from a single piece
• Ships at 10.99 pounds per bar

Compatibility

Designed as a standard-dimension A2 air-hardening tool steel flat stock bar suitable for toolroom, die shop, and precision machining applications where AISI A2 material is specified.

Installation Notes

Cutting and machining of tool steel flat stock should be performed by qualified machinists using appropriate metalworking equipment. Follow the material supplier heat treat guidelines for AISI A2 when hardening and tempering. Wear appropriate PPE when cutting, grinding, or handling bar stock with sharp edges. Any heat treatment operations should be performed by personnel familiar with applicable shop safety procedures and equipment requirements.