It is suitable for use with all corded and cordless drill drivers. The Hexagon Adapter connects the hole saw to the power tool with a mandrel. Hex adapter with 5/8"-18UNF thread and HSS-G pilot drill bit (2 608 596 295)Width across flats 1/4" (6.35 mm), for diameter 32 mm, 1 1/4" - diameter 76 mm, 3" (in metal up to 40 mm diameter)• Use of Holesaws on Power Tools with a Mandrel• Hexagon Adapter connects the hole saw to the power tool• Suitable for use with all corded and cordless drill drivers

Brand Name	Bosch Professional
Type	Holesaw Arbors & Pilot Drills
Item Id	21033010
Hex adapter thread	5/8"-18UNF
Pilot drill bit	HSS-G (2 608 596 295)
Width across flats	1/4" (6.35 mm)
Diameter	32 mm, 1 1/4" - diameter 76 mm, 3" (in metal up to 40 mm diameter)