Drill Rod Tool Steels 86220407 A2 Flat Stock 5/16x4x18 in

Product Description

The DRILL ROD TOOL STEELS 86220407 is an A2 air-hardening tool steel flat stock cut to 5/16 inch thick, 4 inches wide, and 18 inches long. A2 tool steel is an air-hardening, cold-work alloy known for its dimensional stability during heat treatment and its balance of toughness and wear resistance. This bar stock is machined and ground to tight tolerances, including a thickness tolerance of plus or minus 0.001 inch, making it suitable for precision tooling applications. It is commonly purchased by tool and die shops, machine shops, and industrial fabricators requiring consistent, ready-to-use flat bar for tool fabrication.

This flat stock is suited for fabrication of dies, punches, gauges, jigs, and similar cold-work tooling. Its air-hardening characteristic reduces distortion during the hardening process compared to oil- or water-hardening grades, which is a key consideration for close-tolerance components. The 18-inch length and 4-inch width provide adequate stock for a range of tooling blanks without requiring additional saw cuts in many applications. This item is sold as a single piece.

Key Features

• A2 air-hardening tool steel for reduced distortion during heat treat
• Thickness held to plus or minus 0.001 inch for precision machining stock
• Width tolerance of plus 0.000 to minus 0.005 inch for consistent fit
• Length tolerance of plus or minus 0.062 inch
• Square tolerance of plus or minus 0.003 inch
• Ready-to-machine flat bar requiring no additional primary processing

Compatibility

Designed as a general-purpose A2 tool steel flat stock for cold-work tooling applications including dies, punches, gauges, and fixtures in tool and die or machine shop environments.

Installation Notes

Machining and grinding of tool steel flat stock should be performed by qualified toolmakers or machinists using appropriate cutting fluids and tooling rated for hardened or semi-hardened steel. Air-hardening of A2 steel requires controlled furnace heating and still-air quenching; consult the applicable heat treat specification before processing. Always de-burr and inspect dimensions prior to further machining. Personal protective equipment appropriate for metal fabrication should be worn throughout handling and processing.