Sid Griffin of Alco (left) and John Moffit of Malco Tools demonstrated how to cut a hole in round duct using a drill with an attachment. SPARTANBURG, S.C. - Higher energy costs around the country are ...

Function: Portable angle steel flange production line is mainly for punching and cutting duct angle steel flange (30~50angle steel). Cutting and punching die which are both made of Japan SKH51, it's ...

HVAC professionals working with sheet metal, ductwork, and tubing need tools proven to stand up to the test of time: tools that can gouge, drill, crimp, cut, seam, fasten — or maybe a combination ...