Spi 14-876-7 Adjustable Parallel 1-5/16 to 1-3/4 in

Product Description

The SPI 14-876-7 is an adjustable parallel used in machining, grinding, and precision layout work. It spans a range of 1-5/16 inches to 1-3/4 inches, making it suitable for setting up workpieces, supporting parts in vises, and establishing consistent reference surfaces. The overall length is 4-3/16 inches and the thickness measures 9/32 inches (0.2813 inches). The adjustable design allows machinists and toolmakers to dial in a specific height without needing a full set of fixed parallels. This is a shop-floor precision tool intended for professional use in machine shops and tool rooms.

Adjustable parallels are used wherever a part needs to be raised, supported, or aligned at a precise elevation. Common applications include milling vise setups, surface grinder workholding, and inspection plate work. The 1-5/16 to 1-3/4 inch range suits a wide variety of medium-depth setups encountered in general machining. Machinists, tool and die makers, and CNC setup technicians will find this tool useful for repeatable, accurate part positioning.

Key Features

• Adjustable range from 1-5/16 inches to 1-3/4 inches for flexible setup use
• Overall length of 4-3/16 inches provides stable contact surface
• Thickness of 9/32 inches (0.2813 inches) for consistent sizing across setups
• Compact and lightweight at 1 pound for easy handling in the shop
• Single-piece packaging suitable for individual replacement or first-purchase tooling

Compatibility

Designed as a general-purpose adjustable parallel for use in standard milling vises, surface grinders, and precision layout applications requiring a height range of 1-5/16 to 1-3/4 inches.

Installation Notes

Adjustable parallels are set and placed by machinists or toolmakers during workpiece setup. Before placing the parallel in a vise or on a surface plate, ensure the adjustment is locked securely to prevent shifting under clamping pressure. Keep contact surfaces clean and free of chips or burrs that could affect accuracy. Always verify the set height with a micrometer or caliper before taking a cut or measurement.