Starrett 57575 A2 Tool Steel Flat Stock 3/16x3-1/2x18 in

Product Description

The STARRETT 57575 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need precise, ready-to-machine stock for punches, dies, gauges, and other tooling components. This piece measures 3/16 inches thick, 3-1/2 inches wide, and 18 inches long, with a shipping weight of 3.35 pounds. A2 tool steel offers a balanced combination of wear resistance and toughness, making it a widely used choice for cold-work tooling applications. Thickness, width, and square tolerances all fall within +0.010 to 0.015 inches, and length tolerance is held to +0.25 inches, giving machinists a reliable starting point before final grinding or machining to finished dimensions.

This flat stock is suited for job shops, tool and die operations, and maintenance departments that fabricate or repair tooling in-house. The 18-inch length provides enough material for a range of small-to-medium tooling blanks. A2 material in this size range is commonly used in cold-work applications including stamping dies, form tools, and precision fixtures that require consistent hardness after heat treatment. It is sold as a single piece with no minimum order beyond one unit.

Key Features

• AISI A2 air-hardening tool steel construction for consistent cold-work performance
• Thickness: 3/16 inches with +0.010 to 0.015 inches tolerance
• Width: 3-1/2 inches with +0.010 to 0.015 inches tolerance
• Length: 18 inches with +0.25 inches tolerance
• Square tolerance held to +0.010 to 0.015 inches for reliable setup
• Single-piece packaging with no required quantity breaks

Compatibility

Designed as an OEM-style replacement or original material source for cold-work tooling applications requiring AISI A2 air-hardening tool steel flat stock in 3/16 x 3-1/2 x 18 inch dimensions.

Installation Notes

Machining and heat treatment of A2 tool steel should be performed by qualified toolmakers or machinists following established shop practices. Always allow the material to reach ambient temperature before precision measurement. Heat treatment, including hardening and tempering, should follow the material supplier guidelines for A2 tool steel and be performed by personnel familiar with applicable safety requirements for high-temperature processes. Secure workpieces properly before any cutting, grinding, or drilling operations.