Glass Master Duct Board Grooving Machines,
Hand Tools & Accessories
Fabricate fiber glass duct systems faster, safer and more economically
High quality, durable equipment has been our hallmark for more than 80 years.
CertainTeed Machine Works has been producing high performance insulation blow machines for professional contractors since 1936. Our engineering expertise, manufacturing experience and dedication to the industry guarantees we will continue to produce equipment you can rely on for fast, economical, high quality duct production. In 2015 we combined our expertise with that of Glass Master to ensure continued reliability and excellence well into the future. It's no wonder that thousands of our machines have been sold worldwide.
Fabricate quality fiberglass duct systems 15 to 20 times faster than standard hand grooving techniques.
Quickly groove spiral duct or rectangular duct on this powerful machine.
Glass Master put its engineering know-how to work developing a fabrication system to easily and quickly produce hand grooved boards.
Round Hole Cutters, Cuts-All Knives and other useful hand fabrication tools, replacement blades, and accessories are available to make your shop or field work easier and more efficient.