Hougen's holemaking technology includes portable magnetic drills and accessories, Rotabroach and RotaLoc annular hole cutters, the PunchPro electro-hydraulic hole puncher line, sheetmetal-work specialty cutters, and the Tornado II portable paint shaker. The company's 14,000-Series Holcutters are reported to make virtually burr-free, large holes in sheet-metal.

Hougen Mfg. Inc., Flint, Mich.
hougen.com