Spi 13-362-9 Combination Square Set 3 Piece 6 Inch

Product Description

The SPI 13-362-9 is a 3-piece combination square set built for layout, inspection, and scribing work in trade and fabrication environments. The set includes a 6-inch hardened steel blade and two heads: a square head and a center-finding head. Blade graduations follow the 4R system, providing four scales of measurement: 1/8 inch, 1/16 inch, 1/32 inch, and 1/64 inch. The hardened steel construction on both the blade and heads delivers durability under shop conditions. Machinists, pipefitters, millwrights, and fabricators rely on this type of set for accurate 90-degree and 45-degree reference, as well as center-finding on round stock.

This combination square set is suited for use in light fabrication shops, maintenance facilities, and mechanical trades where precise layout work is required. The 6-inch blade length makes it practical for close-quarters work on smaller components and assemblies. The center square head is particularly useful when locating the center of cylindrical parts before drilling or machining. The square head serves general-purpose layout and depth measurement tasks on flat stock and structural components.

Key Features

• 3-piece set includes a 6-inch hardened steel blade, square head, and center square head
• 4R graduation system: 1/8 inch, 1/16 inch, 1/32 inch, and 1/64 inch scales
• Hardened steel blade resists wear and maintains accuracy under repeated use
• Hardened steel head construction for durability in shop environments
• Center square head allows quick and accurate center-finding on round stock
• Compact 6-inch blade length suits close-tolerance and small-component work

Compatibility

Designed as a general-purpose combination square set compatible with standard layout and inspection tasks across mechanical, fabrication, and maintenance trades.

Installation Notes

This is a hand tool requiring no installation. Handle with care to preserve blade graduation accuracy — avoid dropping or storing loose with heavy tooling. Inspect the blade lock and head seating before use to confirm square is registering true. Store in a protective case or tool roll to prevent edge damage and corrosion.