Value Collection 630-4257 Thin Parallel Set 8 Piece

Product Description

The VALUE COLLECTION 630-4257 is an 8-piece thin parallel set designed for precision workholding in machining, grinding, and milling setups. Each parallel measures 3.5 inches long and 5/32 inch thick, with heights ranging from 1/2 inch to 7/8 inch in 1/8-inch increments. The set is manufactured from steel hardened to 55-60 HRC, delivering the rigidity and wear resistance required for accurate, repeatable part positioning. Parallelism is held to 0.0001 inch, making these suitable for close-tolerance setups on surface grinders, milling machines, and machining centers. The set is sold as four matched pairs.

This parallel set is used in machine shop environments for supporting and leveling workpieces in vises and fixtures. The thin 5/32-inch profile is well suited for low-clearance applications where standard-width parallels will not fit. Machinists and tool room technicians use matched pairs to ensure consistent contact on both sides of a vise jaw. The height range of 1/2 inch to 7/8 inch in 1/8-inch steps covers common workpiece configurations in both job shop and production machining settings.

Key Features

• 8-piece set sold as four matched pairs for balanced vise support
• Thin 5/32-inch thickness fits low-clearance vise and fixture setups
• Heights from 1/2 inch to 7/8 inch in 1/8-inch increments
• Steel construction hardened to 55-60 HRC for durability and wear resistance
• Parallelism held to 0.0001 inch for precision workholding applications
• 3.5-inch length compatible with standard machine vise jaws

Compatibility

Designed as a general-purpose thin parallel set for use with standard machine vises, surface grinders, milling machines, and machining center fixtures requiring low-profile workholding support.

Installation Notes

Parallels are set in place by qualified machinists or tool room technicians during workpiece setup. Clean vise jaws and parallel surfaces before use to ensure accurate seating and prevent measurement error. Tap the workpiece lightly to confirm solid contact with both parallels before tightening the vise. Do not use parallels as striking tools or pry bars, as impact loading can compromise hardness and flatness.