Makita D-24898 9pc Standard Bi-Metal Holesaw Electricians Set - Large
$57.00

Six most common sizes for Plumbers & Electricians.
A: 11mm (7/16”) Adaptor
B: 9.5mm (3/8”) Adaptor
C: Ejector spring

Holesaw Sizes: 20mm (3/4”), 25mm (1”),  32mm (1-1/4”), 40mm (1-1/2”), 51mm (2”), 65mm (2-4/7”)