14 pc screw taps and drills set 1.material :HSS 2.size: taps:M3-M12,drill:2.5-10.3 3.port: shanghai or Ningbo 14 pc screw taps and drills set1.material :HSS2.size: taps:M3-M12,drill:2.5-10.33.port: shanghai or Ningbo 14 pc HSS screw taps and drills setDIN352 screw taps ,M3-M12drill :2.5,3.3,4.2,5,6.8,8.6,10.3 14 pc screw taps and drills set