The Klein Tools 31905 Hole Saw Arbor with Adapter features a 3/8-inch shank and works with all Klein hole saws. This steel construction arbor includes an adapter for use with hole saws 1-3/8-inch (35 mm) and larger. The 118-degree split point pilot bit provides accurate starts and clean holes.
The fast engage and disengage system makes hole saw changes quick on the jobsite. Steel construction delivers long service life under heavy use. For larger hole saws requiring pins instead of threads, Klein offers the 31906 arbor model. A product demonstration video shows proper installation and operation techniques.
This arbor handles electrical panel knockouts, plumbing pipe holes, and HVAC penetrations. The included adapter extends compatibility across Klein's full hole saw range. Works in standard 3/8-inch drill chucks for versatility across different drilling applications.