Jaw Boring Rings

Boring Rings | Adjustable Boring Rings

At Dillon Manufacturing, we provide American-made workholding products and materials to increase productivity and efficiency within our customers’ operations. On top of that, we are proud to offer a line of high-quality jaw boring rings for those in the manufacturing sector to use with soft jaws and full-grip jaws.

With our wide variety of jaw boring tools, your company’s machining operations can create a more consistent quality output. As an ISO 9001:2015 registered company with a proven quality record, let us provide you with the high-quality workholding products needed to exceed your project expectations.

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Our Selection of Jaw Boring Tools

Are you looking for jaw boring ring tools that will help increase your company’s productivity levels? If so, our team can provide you with a number of jaw boring rings that work cohesively with our soft and round jaws. Peruse the chart below and choose the diameter that suits your chuck and jaw boring tool needs.

Jaw boring rings
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Part #



H Height

Pin Ø

Pin H

DMBR-04 4.488 1.339 0.472 0.512 0.354
DMBR-05 5.512 2.362 0.472 0.512 0.354
DMBR-06 6.614 3.150 0.472 0.650 0.354
DMBR-08 8.853 4.528 0.472 0.728 0.354
DMBR-10 10.157 5.906 0.472 0.728 0.354
DMBR-12 12.441 7.402 0.591 0.886 0.354
DMBR-15 14.961 9.055 0.787 1.220 0.630
DMBR-18 18.275 11.812 0.787 1.220 0.630

Adjustable Jaw Boring Rings from Dillon Manufacturing

Adjustable jaw boring ring tools from Dillon Manufacturing allow customers to use a single jaw boring ring to bore a range of chuck diameters while still getting all the same benefits of the diameter-specific boring rings.

For information on our adjustable jaw boring rings, refer to the table and images below.

Jaw boring rings
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Part #

< AØ (OD)


H Height

Pin Ø

Pin H

W Width

L Length

Jaw Stroke

Max Gripping (LBF)

Max Speed (RPM)

DM58FD 6.693 3.937 1.024 0.512 0.276 0.748 2.402 0.291 3307 800
DM610FD 7.874 4.921 1.024 0.642 0.315 0.748 2.402 0.291 3307 700
DM812FD 9.764 6.299 1.220 0.720 0.315 0.945 3.150 0.335 3858 600

Our jaw boring rings and adjustable jaw boring tools offer many benefits including:

  • Suitable for CNC lathe
  • Ideal for machining soft jaws
  • Attaches to front of jaws without any tools, eliminating “jaw lift”
  • Applies equal pressure on all jaws
  • Without discs or bungs used to clamp jaws, thorough boring of jaw is possible
  • Self-centering

Below, you’ll be able to find more information about each of our jaw boring ring tools. For additional details, download our online catalog or get in touch with our team today!

Jaw Boring Ring Tools for Any Industry

Since our inception, we have consistently grown our business to the point that we hold national recognition today. Because of this, we continue to be the premier manufacturer of standard and custom chuck jaws, as well as jaw boring tools.

Some of the applications that we are proud to provide jaw boring rings for include, but are not limited to, the following:

  • Machinery for design and build
  • Screw machine products
  • Physician’s and surgeon’s equipment
  • Federal government contractors
  • Elevators and moving stairways
  • Fabricated structural metals
  • Machinery for food products
  • Industrial and commercial machinery
  • Pet supplies and food retail products
  • Plumbing and air conditioning parts
  • Valve and pipe fittings

For more information regarding the distinguished fields that we serve, please visit our industries page.

Place an Order for Jaw Boring Tools from Dillon Manufacturing Today

Each product outlined above is available to order and can be used as a component in your company’s warehouse or factory. When you place an order with our team, we’ll make sure it’s quick, accurate, and priced competitively.

To get started on requesting a quote, or to order your jaw boring ring tools, please contact us today. We look forward to hearing from you!


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How can we help you? Feel free to ask a question below or call us at 800-428-1133.

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