Spi 13-625-9 Spring Steel Square 3 in Blade Workshop Grade

Product Description

The SPI 13-625-9 is a workshop-grade spring steel square used for layout, scribing, and inspection work in machining, fabrication, and metalworking environments. The tool features a 3-inch blade length and a 2.5-inch base length, offering compact geometry suited for close-tolerance checking in confined setups. Parallel accuracy is held to 0.0006 inches and square accuracy to 0.0011 inches, meeting workshop-grade specifications. Machinists, toolmakers, and fabricators use this type of precision square for verifying right angles, setting up vises, and checking workpiece squareness at the bench or on the machine.

This square is designed for general workshop and light inspection use in metalworking shops, job shops, and trade environments where reliable angle reference is required. The compact blade-to-base ratio makes it practical for small-part setups and confined layout work. It is appropriate for use on machine tools, surface plates, and fabrication benches where workshop-grade accuracy is acceptable for the task.

Key Features

• 3-inch blade length for compact layout and angle checking
• 2.5-inch base length provides stable seating on workpieces and reference surfaces
• Parallel accuracy: 0.0006 inches
• Square accuracy: 0.0011 inches
• Manufactured to workshop-grade specifications
• Spring steel construction for durability and resistance to wear

Compatibility

Designed as a general-purpose workshop-grade square suitable for standard metalworking layout and inspection applications where 0.0006-inch parallel and 0.0011-inch square accuracy tolerances are appropriate.

Installation Notes

No installation is required for this hand tool. Clean the reference surface and base seating face before use to ensure accurate readings. Handle precision squares carefully to avoid dropping, which can alter calibration. Periodic verification against a known reference standard is recommended to confirm ongoing accuracy.