The Starrett KFC11031 Bi-Metal Fast Cut Universal Holesaw Kit is suitable for all tradesmen, installation engineers, industry generally and the DIY enthusiast. Starrett kits feature a range of saws with sizes selected specifically to suit the relevant application. Packed in a sturdy EVA carrying case, these kits will be an invaluable addition to any toolbox. Contains: 11 x Bi-Metal Holesaws: 19, 22, 25, 32, 35, 38, 44, 51, 57, 64 and 76mm.2 x Arbors: A1 and A2.1 x A5 Extension.