The core drill bit(hollow drill bit) can be used with electric hammer and it is widely applicable and high efficient for drilling brick wall.

 Item no: AZHS
 Spec: sds plus (hex/sds max) shank wall hole saw
￠45mm, ￠50mm, ￠55mm, ￠60mmetc. 
Material: 40 chrome steel
 Finish: sandblast
 Packing: each piece w/ plastic hanger or box