13pcs combination tap and drill set 1.high quality,competitive price 2.material:HSS+CRV 3.Port:Shanghai or Ningbo 13pcs combination tap and drill set1.material :HSS+CRV2surface : Ti plated(drill&tap) ; sand blast( bit)3.port: shanghai or Ningbo4.payment term : T/T.5.size: 13 pcs combination drill & tap and bit setdrill & tap:M3,4,5,6,8,10bits:PH1,2;PZ1,2;SLD3,5bit holder:1/4"×60MM quick release ...