Starrett 54648 A2 Tool Steel Flat Stock 3/8x3x36 in

Product Description

The STARRETT 54648 is an A2 air-hardening tool steel flat stock bar precision-ground to tight dimensional tolerances for toolmaking, die-making, and precision machining applications. Manufactured to AISI A2 specification, this flat stock measures 0.375 inches thick, 3 inches wide, and 36 inches long, with a thickness tolerance of +/- 0.001 inches and a squareness tolerance of +/- 0.001 inches. A2 tool steel offers excellent wear resistance and dimensional stability during heat treatment, making it a preferred material for punches, dies, cutting tools, and gauges. Licensed machinists, tool-and-die makers, and industrial fabricators are the primary users of this stock.

This flat stock is suited for job shops, tool rooms, and manufacturing environments requiring close-tolerance raw material for fabricating precision components. The 36-inch length provides practical stock for multiple part layouts, and the 3-inch width accommodates a range of die and punch profiles. Width tolerance is held to + 0.000 to 0.005 inches, and length tolerance is + 0.25 inches, consistent with precision ground flat stock standards. Edge squareness is maintained at 0.003 inches per inch across all edges.

Key Features

• AISI A2 air-hardening tool steel for stable, predictable heat treatment response
• Thickness held to +/- 0.001 inches for precise fit in tooling assemblies
• Squareness tolerance of +/- 0.001 inches across all faces
• Edge squareness: 0.003 inches per inch on all edges
• Width tolerance of + 0.000 to 0.005 inches for close-fit applications
• 36-inch length with + 0.25 inch length tolerance for flexible stock utilization

Compatibility

Designed as a general-purpose precision ground flat stock for tool-and-die, punch, gauge, and cutting tool fabrication in shop and manufacturing environments requiring AISI A2 air-hardening tool steel.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or tool-and-die makers using appropriate coolant and tooling rated for hardened or pre-hardened steel. Heat treatment should follow AISI A2 guidelines and be performed in a controlled atmosphere furnace to minimize decarburization. Always use appropriate PPE when cutting or grinding tool steel. Follow applicable shop safety codes when handling stock of this weight and length.