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Cutting metal air duct pieces with the Dremel Trio.
Cutting into duct work has long required either the use of speciality or the use of hand tools. The Dremel Trio make it easy to tap into your ducted ventilation system for jobs like installing a central humidifiers system.
For this project we’ll be using a Dremel Trio, a Multi-Purpose Cutting Bit #TR561 and a pair of safety gloves, a must when working with metal.
Trace the cut-out template that came with the humidifier along the duct. Remember to adjust the depth of the tool’s foot. Once plunged and eighth to a quarter of an inch over the duct and into the vent. Jobs on vertical surfaces prove the Trio tools articulating handle absolutely invaluable. With a quick push of a button, you’re set to work on vertical duct, or against a wall with maximum stability, comfort, and control. Don’t use excessive pressure when plunging or cutting, especially when cutting metal. Let the speed of the bit do the work.
Because the Dremel Trio can scroll cut in any direction there’s no need to turn or reorient the tool at corners. Stop short of a finished cut to pull the duct material out and hold on to it to prevent it from falling into the duct to complete your cut. For further information on the installation or maintenance of your humidifier, consult the humidifier’s owners manual.
Here’s some more thoughts on cutting duct work for a humidifier. When cutting through a furnace be careful not to cut any HVAC components and always wear gloves. Mind your cord when cutting around medal. The Multi-Purpose bit cuts up to 30 gage galvanized sheet metal. If your ducts are any thicker, up to 22 gage, use the #TR563 hard wood and sheet metal bit. Work in clockwise motion when using a Multi-Purpose Cutting Bit.
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