LBK Boring Extension Reducer 1.Used on boring machine 2.For deeper boring 3.Suit for LBK shank 4.In stock LBK Boring Extension Reducer ... 1.Mounted between tool holder and boring head, extension will extend the boring depth capability.2.Available in all diameter ... tool,lathe holder,end mill,endmills,milling cutters,boring tools,boring head,boring bar,tool holders,drills,u drill,nuts,wrenches, ...