Helicoil HSS insert Tap UNC 8 32 Finishing BLREGO28 12 100M CLEAR The AP940 XA BLA 12 100M CLEAR The AP940 is made using ultra pure oxygen free copper (OFC) wire wrapped in a flexible PVC jacket to resist the high temperatures Bore : 1"(25 HELE TUNC832 Helicoil HSS Insert Tap UNC 8 32 Finishing Insert taps are used only when installing Wire Thread Inserts Made to an ISO standard so can be used with any brand of Wire Thread Inserts HSS Insert Taps should only to be used in conjunction with Thread Inserts Hand or machine tapping for through holes and blind holes where ample chip clearance is available The lead chamfer permits easier starting and requires less tapping torque than bottoming taps