[High Quality & Strong Cutting Performance] The hole saw are made of high speed steel and it is heat treated, rough and durable. Because of the sharp tooth shape, it is easy to cut and has a more even, clean, smooth, cut[Wide Applications] The hole saw is widely used for punching cast iron, steel, stainless steel, bronze, copper, PVC, alloy or non-alloy aluminum, acrylic materials, and wood[More solid case] Comes with a sturdy and small storage box that is very convenient to store and easy to carryCondition: brand newItem Type: Bimetal Hole Saw Cutting SetColor: whiteMaterial: high speed steelPackage contents:6 x hole saw (22 29 35 44 57 68mm)2 x axis1 x motherOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.