Bosch Sheet Metal Holesaws - Bosch 2608584780, This Bosch Hole saw for sheet metal has a diameter of 19 mm, 3/4in.
, and is designed for use with a power-change arbour.
The saw has an ejector spring to aid the removal of cut material.
Bosch 2608584780 Hole Saw HSS-Co 19mm Metal Power-change