Spi 13-272-0 Combination Square Set 24 Inch 3 Piece

Product Description

The SPI 13-272-0 is a 3-piece combination square set built for precise layout, inspection, and measurement work in trade and industrial environments. The set includes a 24-inch hardened steel blade graduated in 16R markings — offering four graduation increments: 1/100, 1/32, 1/50, and 1/64 inch. A cast iron center square head and a standard square head are included, making this set suitable for a wide range of scribing, squaring, and center-finding tasks. The hardened steel blade resists wear under repeated shop use. Machinists, pipefitters, millwrights, and general tradespeople use this type of set for both bench and field measurement work.

This combination square set is suited for use on fabrication floors, mechanical rooms, job sites, and machine shops where accurate layout and transfer measurements are required. The 24-inch blade length accommodates larger workpieces that shorter 12-inch sets cannot span. The included center square head is used to locate center points on round stock, while the square head handles 90-degree and 45-degree reference work. This set is appropriate for both residential and commercial trade applications wherever precise linear and angular measurement is needed.

Key Features

• 24-inch hardened steel blade for durability and dimensional stability
• 16R graduation style with four increments: 1/100, 1/32, 1/50, and 1/64 inch
• 3-piece set includes center square head and square head
• Cast iron heads provide rigidity and resistance to deformation
• Center head enables fast, accurate center-finding on cylindrical stock
• Square head supports 90-degree and 45-degree layout and inspection tasks

Compatibility

Designed as a general-purpose combination square set compatible with standard layout and inspection workflows across mechanical, fabrication, and trade applications. No specific equipment or system compatibility data was provided for this SKU.

Installation Notes

This tool requires no installation. Machinists, pipefitters, and tradespeople should inspect the blade and heads for burrs or damage before use to ensure accurate readings. Store the set in a dry location to prevent corrosion on the hardened steel blade and cast iron heads. Do not overtighten the blade-locking mechanism, as this can damage the graduation markings or distort the head seating surface.