Drill Rod Tool Steels 58061 O1 Flat Stock 3/8x1x18 in

Product Description

The DRILL ROD TOOL STEELS 58061 is an O1 oil-hardening tool steel flat bar, supplied in an annealed condition ready for machining before hardening. Conforming to AISI Type O1 specification, this flat stock measures 3/8 inches thick, 1 inch wide, and 18 inches long and weighs approximately 1.91 pounds. Thickness tolerance runs from +0.010 to +0.015 inches, width tolerance is +0.010 to +0.015 inches, and length tolerance is +0.250 inches, making this bar suitable for precision toolmaking applications where close dimensional control matters. Machinists, tool-and-die makers, and metal fabricators work with this material to produce punches, dies, gauges, and jigs.

O1 tool steel flat stock in this size range is used in job shops, tool rooms, and industrial maintenance facilities for fabricating custom cutting tools, form dies, and fixture components. Its oil-hardening characteristic produces less distortion during heat treatment compared to water-hardening grades, making it a reliable choice for small-to-medium tooling where dimensional stability after hardening is important. This bar is appropriate for both one-off prototype tooling and short-run production of tooling components.

Key Features

• AISI Type O1 oil-hardening tool steel specification for controlled heat-treat distortion
• Thickness: 3/8 inches with +0.010 to +0.015 inches tolerance
• Width: 1 inch with +0.010 to +0.015 inches tolerance
• Length: 18 inches with +0.250 inches tolerance
• Squareness: edge 0.003 inches per inch of thickness, end 0.004 inches per inch of width
• Ready for machining in annealed condition prior to heat treatment

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat bar suitable for fabrication of punches, dies, gauges, jigs, and similar tooling components in tool rooms and machine shops.

Installation Notes

Cutting, grinding, and machining should be performed before heat treatment while the bar is in its annealed state. Oil hardening requires proper quenching technique and appropriate personal protective equipment; heat treatment should be carried out by qualified personnel following established metallurgical procedures. All cutting operations should use appropriate machine guards and personal protective equipment consistent with OSHA and shop safety standards.