NEW Item specifics: Brand new and high quality Set includes 8 carbon steel hole saws， 2 arbors with pilot drill and Allen key. Hole saw sizes: 3/4" - 19mm， 7/8"- 22mm， 1 1/8"-28mm， 1 1/4"- 32mm， 1 1/2"-38mm， 1 1/3"- 44mm， 2"