Unisig Deep Hole Drilling Systems

Phone: 262-252-3802
Fax: 262-252-4075

Division of Entrust Manufacturing Technologies, Inc.
Please visit: Unisig Deep Hole Drilling Systems

Mailing Address:
N58 W14630 Shawn Circle
Menomonee Falls, WI 53051 US

A Special Message from Unisig Deep Hole Drilling Systems

UNISIG B500 Deep Hole Drilling Machine

Thank you for your interest in UNISIG Products.

Please visit our website at to learn about deep hole drilling applications, and how UNISIG machines can benefit your factory.  UNISIG also provides durable tooling, custom automation, and a capable team of engineers that can help find solutions for your application.

UNISIG offers Express Delivery Machines in popular models and lengths at reduced lead times.  Machines can be configured with tooling to specific drilling diameters.  Please request a quote at for current availability.

Company Profile

UNISIG engineers and manufactures   deep hole drilling   equipment to the highest performance standards, from the machine itself, to durable tooling and accessories, to automation.  An experienced team of engineers constantly improves deep hole drilling technology, introduces new applications, and provides comprehensive customer support.

UNISIG equipment is currently used worldwide by industry leading manufacturers, for applications including oil and gas exploration, aerospace manufacturing, hydraulic cylinder production, and more.

UNISIG machines and tooling are designed and manufactured in the USA.

Product Categories of Unisig Deep Hole Drilling Systems

  • Drilling Machines, Deep Hole (Gundrilling)
  • Gundrills

Deep Links

Find Your UNISIG Deep Hole Drilling Machine

UNISIG Deep Hole Drilling Machines are capable of achieving extreme tolerance with accuracy and ease. Machines can be used with a variety of drilling methods such as BTA, pull boring, skiving and roller burnishing, and gundrilling.  Visit to choose your machine.

Express Delivery Machines

 UNISIG commits to building popular machine models on a continuous basis, in order to offer reduced lead times to customers.  Machines are often delivered in less than half the standard lead time, and still offer reliability and customization for specific drill diameters or applications. Submit your application for an engineering review and machine availability.

Learn About Deep Hole Drilling

Learn technical aspects and typical applications for deep hole drilling, including BTA and gundrilling.  Download reference guides with drill tube standards, tolerances, and more.

UNISIG Current Events

Keep up with UNISIG events such as trade shows, press releases, and product announcements.

As seen in MMS

Seven-Axis Deep-Hole Drilling Machine Also Performs Milling
Unisig will display its USC-M series of seven-axis deep-hole drilling and machining centers including the USC-M38, with a nominal drilling depth of 59.1", and the USC-M50, with a drilling depth of 72".

Drilling Machine for Aerospace Handles Irregular Workpieces
Unisig has extended its B-series machines for on-center drilling of cylindrical workpieces with the B700 Drop Bed machine designed to generate critical features on large and irregularly-shaped aerospace components such as landing gear struts.

Drilling Machine Changes from BTA to Gundrill Tooling without Dismantling
Unisig has added the high-precision UNI-50BTA to its UNI series of deep-hole drilling machines.

Deep-Hole Drilling Machines on Display
Unisig is showcasing its USC-M series of seven-axis deep-hole drilling and machining centers.

Machine Expands Gundrilling Capabilities for Job Shops
The Unisig UNE6 is a compact gundrilling machine used for drilling deep holes with smaller diameters.

February 2015 Product Spotlight Slideshow: Grinding
Click through this slideshow for a sampling of grinding equipment, ranging from hand tools and abrasives to complete grinding systems.

Houstex 2015 Preview Slideshow
Click through the slideshow to see a selection of technologies to be displayed at Houstex in advance of the February 24-26 trade show.

Gundrill Grinder Enables Concurrent Grinding, Measuring
Unisig’s Gundrill Grinder enables concurrent grinding and measuring operations to help ensure process repeatability and accuracy while speeding the gundrill grinding process.

Drilling and Machining Centers Leverage BTA Process
Unisig’s USC-M series drilling and machining centers combine several processes into one machine capable of drilling and machining all four sides of a workpiece, reducing setup time and increasing accuracy for mold manufacturers.

Guide Highlights Durable Tooling
A Durable Tooling Guide available from Unisig features information on the company’s components and tooling for BTA deep-hole drilling machines.

Combining Skiving and Burnishing for Cylinder Bores
Machines engineered specifically to perform skiving and roller burnishing operations deliver precise roundness tolerances and quality surface finishes.

Machine Line Designed for High Precision Skiving and Roller Burnishing
Unisig Deep Hole Drilling Systems offers the S-series machine line for the skiving and roller burnishing process at IMTS 2012.

Pull Boring Highlights the Capability of Deep Hole Making
Pull boring enables users to achieve remarkable straightness in deep holes. A variation of this technique is also effective when maintaining consistent wall thickness (in long, cast pipes, for example) is top priority.