Starrett 50586 Adjustable Parallel Set 6 Piece with Case

Product Description

The STARRETT 50586 is a 6-piece adjustable parallel set designed for precision layout, setup, and inspection work in machine shops and fabrication environments. Each parallel in the set is adjustable across a range of 3/8 to 2-1/4 inches, allowing technicians to support workpieces at varying heights without switching to fixed-height parallels. Individual pieces span overall lengths from 1-3/4 to 5-1/16 inches, and each parallel measures 9/32 inch thick. The set ships with a protective storage case to keep the pieces organized and protected from shop debris. Machinists, toolmakers, and precision measurement technicians are the primary users of this set.

Adjustable parallel sets like the 50586 are used during milling, grinding, and inspection operations where a workpiece must be raised and positioned at a precise, consistent height. The variety of lengths in this set — ranging from 1-3/4 inches to 5-1/16 inches — covers a broad range of setup scenarios on surface plates, mill tables, and inspection fixtures. The included case makes the set practical for tool crib storage and field transport. This set is suited to both production and job-shop environments where setup accuracy directly affects part quality.

Key Features

• Adjustable range of 3/8 to 2-1/4 inches accommodates varied workpiece heights
• 6 pieces with overall lengths of 1-3/4, 2-1/8, 3-9/16, 3-13/16, 4-3/16, and 5-1/16 inches
• Uniform 9/32 inch thickness across all parallels for consistent setup reference
• Includes a protective storage case to organize and safeguard the full set
• Covers metric equivalent ranges: 45 mm to 130 mm in length variety

Compatibility

Designed as a general-purpose adjustable parallel set suitable for use on standard milling machine tables, surface plates, and inspection fixtures wherever support and height adjustment of workpieces is required.

Installation Notes

Adjustable parallels are set and locked before the workpiece is clamped; always verify the parallel is fully secured before applying clamping pressure to avoid movement during machining or inspection. Keep parallel surfaces clean and free of chips or burrs before use to maintain accurate height reference. Inspect each parallel for wear or damage before each setup. Store the set in the included case when not in use to protect ground surfaces from nicks and corrosion.