M K MORSE MASTER COBALT® Bi-METAL HOLE SAWS
M K Morse's premium line of professional quality bi-metal hole saws feature an M3 high-speed steel cutting edge, electron beam welded to a tough steel backer. Caps stand up to abuse and punishment, yet are lighter and easier to use than those of competitors. Available in two cutting depths 1-1/2" ( 38 mm ). Arbor required.