Drill Rod Tool Steels 57976 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57976 is an O1 oil-hardening tool steel flat bar cut to 0.625 inches thick, 4 inches wide, and 36 inches long. O1 is an oil-quench alloy tool steel known for its dimensional stability during hardening, good machinability in the annealed state, and ability to hold a sharp edge after heat treatment. This flat stock ships in the annealed condition, ready for machining before hardening. It is used by tool and die makers, machinists, and metal fabricators who require precise blanks for punches, dies, gauges, and cutting tools. At 25.78 pounds per piece, this bar is sized for demanding shop applications.

O1 oil-hardening flat stock is a standard material in tool and die shops, machine shops, and precision fabrication environments. It suits applications where tight dimensional tolerances and predictable heat-treat response are required. Typical uses include blanking dies, forming tools, guide rails, wear plates, and precision gauges. The 36-inch length provides enough stock for multiple shorter tool blanks from a single piece, reducing material handling.

Key Features

• AISI Type O1 oil-hardening tool steel - stable during heat treatment with good wear resistance after hardening
• Thickness tolerance of plus or minus 0.001 inches for consistent stock removal during machining
• Width tolerance of plus 0.005 inches, minus 0.000 inches for predictable fit in milled pockets
• Length tolerance of plus 0.5 inches, minus 0.000 inches - sufficient for cut-to-length operations
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Annealed condition allows machining, drilling, and grinding prior to oil quench hardening

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat bar suitable for general tool and die, punch, gauge, and precision machining applications where oil-quench heat treatment is required.

Installation Notes

Machining and heat treatment of tool steel flat stock should be performed by qualified machinists or toolmakers familiar with O1 alloy handling procedures. Always secure the workpiece properly before cutting, grinding, or drilling. Oil quench hardening requires appropriate furnace equipment, quench media, and personal protective equipment - follow applicable shop safety protocols. Cutting with abrasive or carbide tooling is recommended in the annealed state before hardening.