tool insert type lunx 191940 db grade tn 2000 ref no 3870262 of widia or type lunx 191 940 pm grade 4315 ref no 7800850 of sandvik make widia sandvik kennametal note material should be procured by oem or oem authorized dealer with oem authorization certificate and test certificate warranty period 30 months after the date of delivery quantity tolerance 5 age item category normal total po value variation permitted max 8 lacs