![](http://img4.cpooo.com/files/200801/product/47/1200546167.jpg)
tunneling bits
SteelBody,madebymaterial40Cror42CrMo,heattreatmentwith40-44HRChardness,hashightoughnessandwearablecharacter.TipismadefromLowpressSintered,andSuitableGradeSelectedaccordingtotheTargetProjects,Whicharetomakesurethegoodperformanceduringworking.FoundationcreationSolidwallWaterwelldrillingTheproductsadapttothemachinewithalltheperformancefeaturessuchasahighfeedrate,alongservicelifeandshorttoolchangingtimes.Togetherwiththepartssupplyassurance,ahighdailyproductionvolume,andabove-***erageeconomyisguaranteed)