Specification: Type: Hole Saw Set Material: Carbon Steel Trepanning hole depth: 2-25mm Features:Hole Saw Sub-Category: Hole Saw Kit Arbors: 6mm (1/4") and 10mm (3/8") Package Included: 11Pcs Hole Saw Set( 1pc 3/4" - 19mm 1pc 7/8"- 22mm 1pc 1 1/8"-28mm 1pc 1 1/4"- 32mm 1pc 1 1/2"-38mm 1pc 1 1/3"- 44mm 1pc 2"- 51mm 1pc 2 1/2"- 64mm 1pc small Arbor 1pc Allen Key) Package Included: 11PC Hole Saw Kit Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.