Drill Rod Tool Steels 810408 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 810408 is an O1 oil-hardening tool steel flat bar supplied in an annealed, ready-to-machine condition. It measures 7/64 inches thick, 1-1/2 inches wide, and 36 inches long, and weighs 1.69 pounds per bar. O1 tool steel is a general-purpose grade known for its ease of hardening in oil, good dimensional stability after heat treatment, and strong wear resistance. This flat stock is suited for fabricating punches, dies, gauges, knives, and small tooling components. Machinists, tool-and-die makers, and metal fabricators are the primary users.

This flat stock is used in machine shops, tool rooms, and fabrication facilities where close-tolerance blanks are needed for custom tooling. The annealed state allows straightforward milling, grinding, and drilling before hardening. Its consistent cross-section and tight dimensional tolerances make it a reliable starting blank for precision tooling work in both job-shop and production environments.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable, controlled heat treatment
• Thickness tolerance of plus or minus 0.001 inches for consistent stock removal
• Width tolerance of plus 0.005 inches, minus 0.000 inches for a controlled fit
• Length tolerance of plus 0.5 inches to allow for cut-off and facing operations
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Supplied in annealed condition, ready for machining prior to heat treat

Compatibility

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

Installation Notes

Machining and heat treatment of tool steel flat stock should be performed by qualified machinists or tool-and-die makers familiar with O1 hardening procedures. Always follow the material supplier's recommended heat treatment cycle for austenitizing, quenching, and tempering to achieve target hardness. Grinding operations after hardening require appropriate wheel selection and coolant to prevent surface cracking. Handle hardened blanks with care to avoid chipping on thin cross-sections.