Parallels & Sets

Elevated Precision: Professional Machinist Parallels and Sets at Penn Tool Co.

In the machine shop, your setup is only as accurate as the support beneath your workpiece. Since 1968, Penn Tool Co. has been the fundamental partner for machinists and toolmakers who understand that vertical precision begins with a perfectly level foundation. We provide the essential machinist parallels required to elevate your work above the vise bed, ensuring clearance for drilling and milling while maintaining absolute parallelism to the table.

Browse our curated collection of supporting instruments that provide the high-accuracy results needed for both manual toolrooms and high-speed production environments. Our professional-grade parallel set options are priced to be accessible, ensuring you never have to compromise on the accuracy or the productivity of your machining operations.

 

A Comprehensive Catalog for Superior Workholding

Simplify your machine setups by relying on Penn Tool Co.’s versatile inventory. We provide the specialized steel supports that allow you to position workpieces with total mechanical certainty.

Our selection covers every machining scenario and vise requirement. For general milling and drilling, our steel parallels set options provide a wide range of heights in matched pairs. For specialized applications, we offer thin parallel sets for narrow clearances and wavy parallel sets that act as built-in springs to keep your setup tight. If your project involves non-standard heights, our adjustable parallels allow you to dial in the exact elevation required for complex geometries.

From heavy-duty grinding parallels to essential parallel keepers that hold your setup in place, we have the inventory to support your most demanding projects. We proudly partner with industry-leading brands such as Starrett, SPI Swiss Precision Instruments, Precise, and Value Collection to ensure your precision parallels deliver repeatable accuracy shift after shift.

Shop the full Precision Measuring Tools inventory at Penn Tool Co. to find the professional-grade tools your high-tolerance projects demand.

 

Staying Level: Trends in Parallels and Machining

As modern machining tolerances tighten, the tools used for workpiece elevation are evolving to handle more complex setups and higher speeds.

  • High-Hardness Materials: A majorly emerging trend is the shift toward ultra-hardened machinist parallel set options that resist scratching and burring, ensuring long-term accuracy in rugged environments.
  • Wavy and Spring Parallels: Shops are increasingly using wavy parallel sets to simplify "tapping down" workpieces, as the spring tension holds the parallels against the vise jaws automatically.
  • Precision Grinding Standards: New grinding parallels are being manufactured to even tighter tolerances (often within 0.0001") to meet the needs of aerospace and medical component manufacturing.
  • Versatile Adjustability: The demand for adjustable parallels is rising among custom shops that need to support work in increments that standard sets cannot reach.
  • CNC Optimization: CNC parallels are now being designed with specific hole patterns or weights to accommodate high-speed tool paths and coolant flow.

 

Support You Can Trust: The Penn Tool Co. Advantage

Precision begins at the vise jaws. Integrating premium milling machine parallels and specialized adjustable parallel sets into your workflow ensures your workpiece is perfectly positioned for even the most aggressive milling operations. Trust in Penn Tool Co.’s 50+ years of industrial expertise to provide the rugged, high-accuracy solutions that protect your shop’s reputation and your bottom line. Partner with us to experience how the right supporting gear transforms your daily technical efficiency.