Value Collection 637-7030 Thin Parallel Set 20 Piece

Product Description

The VALUE COLLECTION 637-7030 is a 20-piece thin parallel set designed for precision workholding and machining setups. Each parallel is 6 inches long and 1/8 inch thick, covering a height range of 1/2 inch to 1-5/8 inch in 1/8-inch increments. The set is manufactured from alloy steel hardened to 50-54 RC, delivering the durability and rigidity required for accurate milling, grinding, and inspection work. Parallelism tolerance is held to 0.0008 inches and overall accuracy is 0.0010 inches, making this set suitable for close-tolerance setups where consistent part seating is critical. The ten matched pairs are stored in a fitted plastic case for organized storage and protection between uses.

This parallel set is used by machinists and toolroom professionals in manual and CNC milling operations, surface grinding setups, and layout or inspection tasks. The thin 1/8-inch profile allows it to fit in vises and fixtures where standard-width parallels would be obstructed. The incremental height range covers a broad span of common workpiece elevations, reducing the need to swap between multiple sets during a job. Typical users include production machinists, tool and die makers, and apprentices building out a precision workholding kit.

Key Features

• 20-piece set organized as 10 matched pairs for consistent, repeatable workholding
• Alloy steel construction hardened to 50-54 RC for wear resistance and long service life
• Thin 1/8-inch profile fits tight vise and fixture clearances where wider parallels cannot
• Height range of 1/2 inch to 1-5/8 inch in 1/8-inch increments covers common workpiece elevations
• Parallelism held to 0.0008 inches with 0.0010-inch overall accuracy
• Includes fitted plastic case for organized storage and protection

Compatibility

Designed as a general-purpose thin parallel set compatible with standard milling vises, surface grinders, and inspection fixtures that accept 1/8-inch-thick parallels in the 1/2-inch to 1-5/8-inch height range.

Installation Notes

Installation is performed by machinists during machine setup without the need for special tools. Clean mating surfaces of the vise and workpiece before placing parallels to prevent debris from affecting seating accuracy. Never use parallels as a striking surface or pry tool, as this can compromise hardness and flatness. Store the set in the provided plastic case when not in use to protect ground surfaces from damage.