1270 Agricola Drive, Saginaw, Michigan 48604 USA 989.752.3077 | Toll Free: 877.308.3077sales@universaldevlieg.com

1270 Agricola Drive, Saginaw, Michigan 48604 USA

Ph: 989.752.3077 | Toll Free:877.308.3077


Universal Engineering / Devlieg Microbore

Universal/Devlieg Inc.

Complex Boring Processes

Boring is the process of enlarging holes that have already been drilled to make them concentric, properly sized, and finished. It can become more complex when it involves intricate machined parts and materials. The following are boring processes used for more complicated projects.

Blind Bottom Boring

A hole with a bottom or surface that doesn’t allow the drill or tool to go through the part requires blind bottom boring. These state-of-the-art equipment must be operated by a skilled machinist to achieve tight tolerances and finishes. Blind bottom bores can have flat or flush bottoms with round or tapered edges. For precision blind bottom boring, a knowledge of different metals and alloys is optimum.

Step Boring

A step bore is a specialty boring process with multiple diameters or features. Step boring tools have inserts set at different heights and diameters. Machinists are able to enlarge existing bores or add features within exact finish requirements and tolerances.


Confluent Maine precision machines chamfers (beveled edges) in a variety of metals and metal alloys. While chamfers are usually cut at 45 degree angles, Confluent Maine also has the ability to round or taper edges, and machine at transition points.

Pattern Drilling

Pattern drilling comes in play for complex projects that involve removing material in a sequence of machined holes, in a variety of sizes, depths and physical orientations. This state-of-the-art boring process is performed in a carefully controlled manufacturing facility.

Universal DeVlieg provides innovative and cost-cutting tool holding and high precision boring solutions to the machine tool industry, servicing a diversified customer base. The combination of over 32,000 active part numbers, over 10,000 standard items, and our technical support staff deliver design engineering expertise that is unmatched in the industry. To learn more about Universal DeVlieg, contact us This email address is being protected from spambots. You need JavaScript enabled to view it. or 877.308.3077 or visit at universaldevlieg.com.