... -180mm (1"-7")Working Length: 107-550mmConnecting Rod For Hammer Core Drill bit(SDS Plus Shank, SDS Max, Long Hex, Square), Guided ... .mm1314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606570 8pcs Carbide Tipped Hole -making Drill in Wooden BoxSizes:16,20,22,25,28,30,32,35mm CARBIDE TIPPED CORE DRILL BIT