Starrett 54786 A2 Tool Steel Flat Stock 0.875x6x18 in

Product Description

The STARRETT 54786 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die work, and precision machining applications. Measuring 0.875 inches thick, 6 inches wide, and 18 inches long, this flat stock is produced to tight dimensional tolerances: plus or minus 0.001 inches on thickness, plus or minus 0.001 inches on squareness, plus 0.000 to 0.005 inches on width, and plus 0.250 inches on length. A2 tool steel is known for its balanced combination of wear resistance, toughness, and dimensional stability during air-hardening heat treatment. Machinists, toolmakers, and die makers select this material for applications where consistent geometry before and after hardening is critical.

This flat stock is suited for fabricating punches, dies, gauges, cutting tools, and similar precision components in machine shops and tool-and-die operations. The A2 grade performs reliably in both annealed and hardened states, making it appropriate for shops that rough-machine, then harden, then finish-grind to final dimensions. The 6-inch width and 18-inch length provide enough material for medium to large tool components without requiring additional stock joining. Sold individually as a single piece.

Key Features

• A2 air-hardening tool steel for excellent dimensional stability through the hardening cycle
• Thickness tolerance of plus or minus 0.001 inches for consistent stock removal planning
• Width tolerance of plus 0.000 to 0.005 inches maintains near-net width accuracy
• Squareness tolerance of plus or minus 0.001 inches supports accurate layout and setup
• 18-inch length with plus 0.250-inch tolerance allows adequate facing stock on both ends
• Ready for annealed machining followed by air-hardening heat treatment

Compatibility

Designed as a standard A2 tool steel flat stock suitable for toolmaking, die making, and precision machining applications requiring air-hardening material in this thickness and width range.

Installation Notes

Machining and heat treatment of tool steel flat stock should be performed by qualified toolmakers or machinists familiar with A2 grade requirements. Rough machining should be completed in the annealed condition, leaving sufficient stock for post-hardening grinding. Air-hardening heat treatment should follow the steel supplier's recommended austenitizing and cooling procedures to avoid distortion or cracking. Always use appropriate personal protective equipment when cutting, grinding, or handling tool steel stock.