Description
5/16" X 1 1/4" X 18" Starrett Oversize Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 56991 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 surface provides a flat, true base for accurate machining setups
- Oversize blank supports final dimensioning to exact thickness and width during finishing
- AISI O-1 oil-hardened steel offers good machinability with stable wear characteristics
- Long 18 inch form enables use in larger fixtures, jigs, and tooling projects
- Suitable for milling, drilling, grinding, and fixture construction tasks
Specifications
- Form: Oversize precision ground flat stock
- Material: AISI O-1 oil-hardened steel
- Thickness: 5/16 inch
- Width: 1 1/4 inch
- Length: 18 inch
- Finish: Precision ground
- Dimensions (approximate in product specs): 5/16 inch thick, 1 1/4 inch wide, 18 inch long
Applications
- Tool and die shops for fixture bases and form blocks
- Machining and fabrication shops needing reliable base stock for jigs and stops
- Prototyping workflows and experimental setups requiring precise, flat stock
- Metalworking environments where consistent surface flatness is critical for alignment and squaring
Can We Help?
If you’re not sure that this product is right for you, give us a call!
800-222-0324

