Value Collection 637-7532 Precision Parallel Set 8 Pc

Product Description

The VALUE COLLECTION 637-7532 is an 8-piece precision parallel set manufactured from tool steel and designed for use in machining, layout work, and workholding setups. Each parallel measures 6 inches in length and 3/16 inch thick, with height increments of 1/4 inch across the set. The steel is stress relieved to resist distortion, then precision ground and hardened to 55-62 HRC for consistent dimensional stability. Holes machined through each parallel allow for easier handling and faster fixture setups. The set ships in a fitted wooden case for organized storage and transport.

This parallel set is suited for use on surface plates, in milling vises, and on magnetic chucks where precise, repeatable workpiece elevation is required. The four pairs span heights from 1 inch to 1-3/4 inches, covering a range of common setup requirements. Machinists, tool and die makers, and precision metalworking shops will find this set practical for layout inspection, height gauging, and vise setup applications where parallelism tolerances must be held tight.

Key Features

• Precision ground tool steel holds parallelism to 0.0003 inches and accuracy to 0.0010 inches
• Hardness rated at 55-62 HRC for resistance to wear and deformation under load
• Stress-relieved material minimizes dimensional drift over time
• Through-holes in each parallel improve handling and reduce setup time
• Set includes four matched pairs covering 1 inch, 1-1/4 inch, 1-1/2 inch, and 1-3/4 inch heights
• Fitted wooden storage case included to protect ground surfaces between uses

Compatibility

Designed as an OEM-style replacement and standard-use parallel set suitable for general precision machining and layout applications in shops using milling machines, surface grinders, and inspection equipment requiring parallel workholding support.

Installation Notes

Parallels should be cleaned and inspected for burrs before each use to avoid seating errors. When placing parallels in a vise or on a surface plate, ensure mating surfaces are free of chips and coolant residue. Dropping or striking hardened parallels against hard surfaces can cause chipping or cracking; handle with care. Store in the provided wooden case to protect ground surfaces from corrosion and contact damage.