1 1/2″ X 4″ X 18″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54245 Next Day Delivery

1 1/2″ X 4″ X 18″ Starrett Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 54245 is Starrett precision ground flat stock, supplied ground flat, square and parallel in aisi o-1 oil hardened steel so it goes straight into layout, fixturing and machining work without further surfacing.

Precision ground flat faces provide flat, square surfaces for reliable setups during milling, drilling, and surface grinding operations.

Tool steel with oil hardening (AISI O-1) offers solid hardness and wear resistance suitable for fabricating dies, fixtures, and custom tooling.

Single piece construction minimizes variance along the length and supports consistent alignment when shaping or locating parts.

Heat-treatment friendly for project-specific hardness adjustments, including tempering to balance toughness and wear resistance.

Ready for machining workflows, reducing prep time in shop environments.

Specifications

Material: AISI O-1 oil hardened steel

Form: Precision ground flat stock

Dimensions: one and a half inches thick by four inches wide by eighteen inches long

Surface: Ground flat faces suitable for precision machining

Length: eighteen inches

Width: four inches

Thickness: one and a half inches

Pieces per package: one

Applications

Metalworking shops and machine shops for toolmaking, fixtures, and jig fabrication

Die and mold making, where accurate flat stock forms the base for fixtures and forming tools

Prototype development and custom tooling for fabrication environments

Knife, blade, and edge-tool projects requiring reliable stock prior to shaping and heat treating

Educational labs and hobby machinists building fixtures or practicing machining with reliable flat stock