Power-change holesaw and adaptor for a fast and safe attachment and release of the pilot drill bit and holesaw, with just one click. Progressive tooth strip provides optimal cutting performance and fast chip clearance. HSS bi-metal with 8% cobalt alloy, enlarged HSS stripe and redesigned teeth ensures extreme durability.

Brand Name	Bosch
Material	HSS bi-metal with 8% cobalt alloy
Manufacturer Model No	821GX
Max. Depth of Cut	44 mm
Product Diameter	22 mm
Teeth Per Inch (TPI)	3 tpi