Drill Rod Tool Steels 66780 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 66780 is an O1 oil-hardening tool steel flat stock bar cut to 0.5 inches thick, 2 inches wide, and 18 inches long. Conforming to AISI Type O1 specification, this flat stock is manufactured to tight dimensional tolerances, making it suitable for toolmaking, die work, jig plates, and precision machined components. At 5.16 pounds, the bar is sized for bench-scale fabrication and shop use. Licensed machinists, tool-and-die makers, and metalworking professionals work with this material when they need a reliably flat, square-edged steel blank that machines predictably in the annealed condition before oil hardening.

O1 tool steel flat stock in this size is a common starting blank for hand tools, gauges, punches, dies, and fixture components in job shops and manufacturing environments. The 18-inch length suits single-piece tool blanks or can be cut down for multiple shorter components. The 2-inch width covers a broad range of tooling profiles without requiring initial stock removal on width.

Key Features

• AISI Type O1 Oil-Hardening tool steel for good wear resistance after heat treatment
• Thickness tolerance of plus or minus 0.001 inches for precise fit in tooling applications
• Width tolerance of plus 0.005 inches, minus 0.000 inches for consistent material sizing
• Length tolerance of plus 0.25 inches to ensure full usable length
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Weighs 5.16 pounds, ready for direct use or further machining

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat stock for general toolmaking, die making, and precision machining applications where oil-hardening steel stock is specified.

Installation Notes

O1 tool steel flat stock is worked by qualified machinists and tool-and-die makers using conventional milling, grinding, and drilling equipment. Material is typically supplied in the annealed condition and requires proper oil-hardening heat treatment by a qualified heat treater before use in hardened tooling applications. Follow applicable shop safety procedures when cutting, grinding, or machining tool steel. Eye protection, appropriate guarding, and proper chip management are required when machining this material.