T-type tap wrench 1.threading or drilling 2.M3-M6, M3-8, ... .package: blister card 4.material: carbon steel Description:T-type tap wrench in hand tool Specification: M3-M6, M3-8, M5 ... -10, M6-12 Special requirments:Heat treatmentblack finished,chrome coatingUsageFor threading and drilling performanceMaterial:Carbon steelPackage:PVC bag, blister ...