Traditional drilling systems — especially modular core bits — are often made up of multiple pieces, like extension shanks, centering bits, and threaded arbors. The gaps between these pieces compromise the bit’s strength, and any time you want to use them or switch sizes, you have to piece it all together. Metabo’s newly-released a one-piece core bit family claims to solve that problem, making the bits easier to use and more effecient (read: faster) at drilling through concrete, block and brick.
This would come in handy when you have to run pipes through a concrete block foundation or put in some anchors for a railing. The carbide-tipped bits come in diameters from 1-1/2″ to 6″ and overall lengths of 12″ and 22″. The one-piece core bit is available with either an SDS-Max or spline-drive shank. No pricing has been announced yet, but expect to see them on shelves shortly.
Press Release [Metabo]