Products and Services

Boston Centerless offers extensive bar and component centerless grinding capabilities for metals and plastics in diameter sizes ranging from .005” to 3.00”. Our ability to hold consistently tight tolerances and deliver exceptional straightness separates Boston Centerless from the rest. We’ll even help you manage the flow of your material through VMI services, Kanban programs and oversized feedstock inventory that results in lightening fast lead times.

All of the product and service offerings from Boston Centerless are summarized in the three product categories below.


  • Precision Bar - AccuRod® - The most consistently round, straight and close tolerance bar you can buy.
  • Grinding Services – GrindAll -  Thru-feed and In-feed precision grinding on customer provided materials and components.
  • Ultra-Precise Gages – PinGage - Quality gage products to assist you with your measurement needs.


Bar Processing

In addition to precision grinding, Boston Centerless also provides a number of added services including:

Component Grinding

Our GrindAll grinding services augments the in-house capabilities of our customers. We perform precision grinding on material and components that is provided by our customers. Our grinding processes include:

  • In-feed grinding for multi-dimensional components
  • Thru-feed grinding
  • Straightening


Our PinGage division provides lapping services for customer supplied material or components. The lapping process makes it possible to attain super-precise tolerances and smoother, high polished finishes.

Vendor Managed Inventory

Let Boston Centerless help you optimize your inventory performance by managing the flow of material into your operations. We offer a variety of programs to select from that will meet the specific needs of your business.

Precision Centerless Grinding

Learn more about our precision centerless grinding services.


The headquarters and manufacturing facility of Boston Centerless is located in Woburn, MA. Click here to learn more about our plant and equipment.

Request for Quote

Let Boston Centerless provide you with a quotation for your precision bar requirements. Fill out our quote form today!


Boston Centerless brochure



Information Sheet