Value Collection NS06124002 O1 Tool Steel Flat Stock

Product Description

The VALUE COLLECTION NS06124002 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who require close-tolerance raw material for fabricating punches, dies, gauges, and cutting tools. Cut to 3/8 inches thick by 3/8 inches wide by 18 inches long, this bar conforms to AISI Type O1 oil-hardening specifications. Thickness and squareness tolerances are held to plus or minus 0.001 inches, giving the machinist a reliable starting dimension before heat treatment. The bar ships in single-piece quantity, making it practical for low-volume toolroom applications.

O1 tool steel flat stock at this cross-section is commonly stocked in job shops, toolrooms, and maintenance departments for custom tooling fabrication. Typical applications include small blanking punches, form tools, scribes, and precision fixtures where the material will be oil-quenched and tempered to working hardness after final machining. This size is well suited to light-duty tooling where dimensional stability through heat treatment is required and where the fine grain structure of O1 provides acceptable edge-holding characteristics.

Key Features

• AISI Type O1 oil-hardening tool steel material specification
• Thickness tolerance held to plus or minus 0.001 inches for close-tolerance applications
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.25 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• Single-piece packaging suitable for toolroom and maintenance quantities

Compatibility

Designed as a standard O1 oil-hardening tool steel flat bar for general toolroom and die-shop fabrication requiring AISI Type O1 material at 3/8 x 3/8 inch cross-section.

Installation Notes

Machining and heat treatment of O1 tool steel should be performed by qualified toolmakers or machinists familiar with oil-quench hardening procedures. Finish-machine the part to final dimensions before hardening, leaving only minimal stock for grinding if a precision ground surface is required after heat treat. Always follow established shop safety procedures when handling cutting fluids, quench oils, and heat-treating equipment. Consult the material data sheet for recommended austenitizing temperatures and quench media specific to O1 tool steel before processing.