Development of company of Yi of the name of a river in Shaanxi and Henan provinces of Toshiba calm arrowroot goes a kind of belt to offer the hard alloy bit of oily aperture, trade name is broach of DSC-P train in excess specified length. This kind of broach basically is used at the deep Kong Jia of cast-iron, aluminium alloy to be versed in, the two cutting blade of broach can undertake big feed cutting, its machine efficiency to be before the 2 ～ that the gun gets 5 times. This company was developed for this kind of broach comfortable the special groove that is versed in at deep Kong Jia and cutting blade appearance, can undertake the deep Kong Jia of L/D=20 is versed in. Broach material is special exceed fine grained hard alloy, have fight exceedingly goodly break off and wear-resisting function. CNC MillingCNC Machining