10 High Speed Steel Electric Hand Drill Bit - Silver Grey (10PCS)
Features: Using high speed steel material manufacturing easy processing through the proper heat treatment just hardness can be obtained high hardness and high wear resistance (this product is a consumable does not belong to the warranty scope). Application range: suitable for Angle iron ordinary metal aluminum copper products such as plastic wood plate hole operations. Please note: this should not be used for the high hardness high strength stainless steel metal hole.