The SUTTON® WHC10 HSS Holesaw Arbor/Pilot Drill with Quick Release Adaptor converts standard Holesaws into a quick release version.
The HSS Arbor/Pilot Drill is suitable for drilling wood, ferrous metal, non-ferrous metal & plastics.
With its 5/8"-UNF Quick Release Adaptor, it is suited to 32-152 mm Holesaws.
Specifications

Shank: 7/16"-Hex
Overall Length: 187 mm (7-3/8")
Thread (Quick Release Adaptor): 5/8"-UNF