combination drill and tap 1.material :HSS 2.size: M3,M4,M5,M6,M8,M10 3.port: shanghai or Ningbo 4.payment term:T/T combination drill and tap1.material :HSS2.size: M3,M4,M5,M6,M8,M103.port: shanghai or Ningbo HSSM3×0.5HSSM4×0.7HSSM5×0.8HSSM6×1.0HSSM8×1.25HSSM10×1.5an combination drill and tap