... Parts No. as BFZ80, BFZ70,Bucket teeth T25series and holder,T18 series and holder,Holders parts No. as C30, B43H, BHR73 etc ... with 40-44HRC hardness, has high toughness and wearable character. Tip is made from Low press Sintered, and Suitable Grade Selected ... high daily production volume, and above-average economy is guaranteed holder