Lone Star Hovercraft has been floating over the challenges of home-built hovercrafts projects since 2012. Benjamin King obtained his PH.D. in physics, focusing on the study of fluid dynamics of waves, as well as boundary layers; Hovercrafts have been an avid ambition ever since. Dr. King started ...

Read More
Learn more

Pick Three. Quality, Delivery & Price.
Custom Machine and Tool Co., Inc. provides first-class timing pulley stock to you in a variety of materials quicker than anyone else in the business. CMT also carries a complete line of matching timing pulley stock flanges and timing belts to provide you w...

Read More

Some machine builders rely on set screws to connect their components to the shaft. However, set screws can damage shafts and tend to loosen and slip during clutching and braking. Mechanical shrink fit providing uniform surface contact ensures no relative movement or loss of torque capacity over...

Read More

Automated Medical Instruments manufacturers - are loosening set screws giving you constant rework and repairs? Learn how this manufacturer was able to improve concentricity, which in turn, improved positional accuracy by using the Concentric Maxi Torque System. Learn more .... https://www.cmtco.c...

Read More

About us

Custom Machine & Tool Co., Inc. is a US manufacturer of precision timing pulleys, drive systems and components for the motion control and power transmission industries since 1964.

Our product offering contains all popular timing pulley tooth designs including Trapezoidal inch and metric, AT metric, HTD metric curvilinear and Gates PowerGrip GT, and Zero Backlash.

We also produce sprockets, custom v-ribbed pulleys, tapered bushings, idler bearings, assemblies and other industrial power transmission components, and offer value added services such as kanban and JIT delivery options and laser engraving services.

CMT developed and patented a new and revolutionary hub to shaft connection device which allows for precise component positioning and tight runout control on demanding applications.  At the same time, it is easy to install and remove and is economical to manufacture.

Our keyless hub to shaft connection device has superior features and benefits compared to other connection systems such as keyways, pins, set screws, clamp collars and other tapered shaft locking devices.

The new system, the Concentric Maxi Torque, is available for immediate inclusion in our full offering of timing belt pulleys and can be designed into any application.

Contact Us


Call now
  • (781) 924-1003


Get directions
301 Winter St
Hanover, MA 02339
United States

Business Hours

Mon:7:00 AM – 4:00 PM
Tue:7:00 AM – 4:00 PM
Wed:7:00 AM – 4:00 PM
Thu:7:00 AM – 4:00 PM
Fri:7:00 AM – 4:00 PM
Get quote
Message sent. We'll get back to you soon.