The starrett kdc10022 deep cut bi metal deluxe plumbers 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 10 x holesaws 19 22 29 35 38 44 51 57 65 68mm2 x arbors a1 and a2