Drill Rod Tool Steels 812651 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 812651 is an O1 oil-hardening tool steel flat bar cut to 9/32 inches thick, 3 inches wide, and 36 inches long. O1 is a general-purpose oil-hardening tool steel that offers excellent machinability in the annealed state and responds predictably to oil quench hardening. It is widely used in toolmaking, die work, jigs, fixtures, and precision machine components. Machinists, tool and die makers, and metalworking shops are the primary installers and end users. At 8.7 pounds per piece, this bar ships as a single-piece quantity.

This flat stock is suited for fabrication of punches, dies, blades, gauges, and other tooling components that require a steel capable of through-hardening via oil quench. It is appropriate for both small job shops and production toolrooms working on light to medium tooling applications. The annealed supply condition allows straightforward milling, grinding, and drilling before heat treatment. Dimensional tolerances are held to tight, inspection-ready standards, making it a reliable choice where finished-size accuracy matters before and after machining.

Key Features

• AISI Type O1 oil-hardening tool steel per material specification
• Thickness tolerance held to plus or minus 0.001 inches for precise stock removal planning
• Width tolerance of plus 0.005 inches, minus 0.000 inches ensures stock is never undersize
• Length tolerance of plus 0.5 inches provides extra material for facing or squaring operations
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness for predictable setup
• Single-piece minimum order quantity with no multi-piece commitment required

Compatibility

Designed as a standard O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision fixture applications requiring AISI Type O1 material specification.

Installation Notes

Cutting, grinding, and machining should be performed in the annealed condition prior to heat treatment. Oil quench hardening of O1 steel requires controlled furnace heating and a clean quench oil bath and should be performed by a qualified heat treater or experienced toolroom professional. All grinding after hardening should use adequate coolant to prevent surface tempering. Consult applicable shop safety standards and the material supplier data sheet for recommended hardening temperatures before processing.