AccuRod®
Precision Ground Bar Stock
For Close Tolerance Machining
AccuRod® precision bar stock is engineered for close tolerance machining applications.
We deliver on time, every time, giving your shop the peace of mind to focus on manufacturing with a reliable material source.
Precision Designed To Scale
With our in-house centerless grinding capabilities, Boston Centerless provides precision ground bar stock with the most consistent diameter tolerance, roundness and straightness in the industry. Due to its simple setup, centerless grinding offers faster turnaround times than other grinding methods, making it an excellent choice for large volume production.
Centerless ground bar stock is the key to unlocking precision at scale, providing advantages like faster machining times, longer tool life, and reduced vibrations at high RPM. AccuRod®’s advanced features give manufacturers the ability to make more with minimal supervision, in some cases enabling lights-out manufacturing.
With over 30 thru-feed centerless grinders, we have the capacity to provide fast lead times and handle large volume contracts.
Quality Starts At The Source
Our team procures raw materials from only the highest quality mills, guaranteeing that our customers always receive centerless ground bar with superior machinability characteristics. We validate material quality at our in-house material testing and validation laboratory, using Nadcap accredited nondestructive testing equipment. Materials that we can supply include stainless steel, medical alloys, plastics, and more.
The Advantage Of A
Single Supplier
Sourcing precision bar material and centerless grinding from one supplier will reduce your lead time. Boston Centerless takes things a step further as a supply chain management partner, offering inventory management and custom delivery plans including blanket orders, dock to stock, and more.
Value-Added
Services
Additionally, Boston Centerless offers value-added services such as heat treating, straightening, laser marking, and material testing and validation. When combined with our precision centerless grinding operations, these steps can reduce costs, decrease time to market, increase productivity, enhance quality, and improve responsiveness for our customers.
Find out how AccuRod®
precision bar stock can
help elevate your quality
and throughput.
Dimensional
And Tolerance Capabilities
12 ft. Bars
Cut-lengths
Diameters
.040 to 3.00″
.005″ to 3.00″
Diameter Tolerances
to .0001″
to .000040″ (40 millionths)
Roundness
to .000020″ (20 millionths)
to .000020″ (20 millionths)
Straightness
to .003″ per ft.
to .0005″ per ft.
Surface Finish
to 8 Ra
to 2 Ra
Downloads
Frequently Asked Questions
We’ve answered your top questions about AccuRod® and our precision ground bars. Want to know more? Contact us today.
AccuRod® is centerless ground precision bar stock designed for close tolerance machining applications. It delivers consistent diameter, roundness, straightness, and surface finish to help improve machining efficiency and reduce scrap.
AccuRod® precision ground bar stock can be produced with very tight diameter tolerances (down to 0.0001"), roundness to 0.000020", straightness as tight as 0.0005" per foot (cut lengths), and surface finishes down to 2 Ra depending on size and requirements.
Boston Centerless supplies AccuRod® in a wide range of diameters, including 12 ft. bars from 0.040" to 3.00" and cut-lengths from 0.005" to 3.00".
Precision ground bar stock helps improve material yield, reduce scrap and rework, increase tool life, and reduce machine downtime. It also supports higher productivity and more consistent part quality in high-volume and close tolerance machining.