Spi 14-875-9 Adjustable Parallel 15/16 to 1-5/16 Inches

Product Description

The SPI 14-875-9 is an adjustable parallel used for precision setup and workholding tasks in machining and fabrication environments. It adjusts from 0.9375 inches (15/16) to 1.3125 inches (1-5/16) to accommodate a range of workpiece heights and vise setups. The body measures 3.5625 inches long and 0.28125 inches thick, keeping a low profile inside a vise jaw. Machinists and toolroom technicians use adjustable parallels to support and level workpieces accurately during milling, grinding, and inspection operations. The compact geometry and adjustable range make this a practical single-unit solution for setups that fall between fixed parallel sizes.

This parallel is suited for use in machine shops, tool rooms, and production environments where workpiece support height must be fine-tuned without swapping between multiple fixed parallels. It is appropriate for horizontal milling, surface grinding, and precision layout work. The slim 0.28125-inch thickness allows it to fit in tight vise setups where a thicker parallel would not clear. Sold individually, it can be paired with a matching unit for balanced workpiece support.

Key Features

• Adjustable range from 0.9375 inches to 1.3125 inches for versatile workpiece support
• Overall length of 3.5625 inches provides stable contact across the vise jaw
• Thickness of 0.28125 inches (9/32) suits tight-clearance setups
• Compact and lightweight at 1 pound for easy handling and storage
• Sold as a single unit, allowing mix-and-match pairing with existing parallels

Compatibility

Designed as an OEM-style precision measuring and workholding accessory compatible with standard machinist vises and surface plates where adjustable parallel support in the 0.9375 to 1.3125 inch height range is required.

Installation Notes

Adjustable parallels are installed by machinist or toolroom personnel as part of workpiece setup prior to machining or grinding operations. Always ensure the parallel is fully seated and locked at the desired height before clamping the workpiece. Clean vise jaws and parallel surfaces before use to prevent measurement error caused by chips or debris. Do not use adjustable parallels as a striking or prying tool, as this can damage the adjustment mechanism and affect accuracy.