Amcraft® 1100 Red 1″ 90° V Kerfing Tool for Duct Board

The Amcraft® 1100 Red 1″ 90° V Kerfing Tool is a professional-grade hand tool engineered for precision cutting of fiberglass duct board. Designed to make clean and accurate 90° V-grooves, this tool is essential for HVAC technicians who need to fabricate tight-fitting, mitered joints in 1" thick duct board systems.

By producing a consistent V-cut, the tool allows the duct board to be folded into sharp corners without compromising the integrity of the insulation or airflow performance. The red handle design provides comfortable grip and control, reducing fatigue during extended use on the job.

It is manufactured in the USA, assuring high craftsmanship quality and long-term durability. The Amcraft® 1100 is widely used in both residential and commercial HVAC duct installations, making it a staple in any professional duct board fabrication kit. It is also compatible with common groove cut styles like #2, #3, and #4, making it versatile and efficient across multiple duct configurations.