1/2″ X 3″ X 18″ Starrett Oversize Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 57021 Get Yours

1/2″ X 3″ X 18″ Starrett Oversize Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 57021 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 stock provides consistent flatness and squareness for fixture bases and jigs.

AISI O-1 oil hardened steel offers reliable wear characteristics and machinability for milling, shaping, and forming tasks.

Oversize dimensions allow final trimming to exact size in the shop with standard tooling.

One piece construction eliminates joints that can introduce misalignment in setups.

Specifications

Material: AISI O-1 oil hardened steel

Type: Oversize precision ground flat stock

Dimensions: 0.5 inch thick x 3 inch wide x 18 inch long

Finish: Precision ground surfaces

Rectangular flat stock with uniform thickness across the length.

Edges suitable for clamping and machining operations on common machine tools.

Applications

Machining and metalworking shops for fixturing, shims, and custom tooling.

Tool and die making, fabrication, and prototype development.

Automotive, aerospace, and general manufacturing environments requiring precise flat stock.

DIY and hobbyist metalworking projects needing reliable stock material.