Description: 18pcs High Speed Steel Titanium Coated Twist Drill Bits 1.5mm-10mm HSS 4241 Twist Drill Bit    Specification: Type: Twist Drill Bit Material: HSS 4241 Surface treatment: Titanium Coated Handle Diameter :1.5mm、2mm、2.5mm、3mm、3.5mm、4mm、4.5mm、5mm、5.5mm、6mm、6.5mm、7mm、7.5mm、8mm、8.5mm、9mm、9.5mm、10mm Total quantity: 18pcs   Size:               Handle Diameter (mm)         Total Length (mm)         Quantity (pc)               1.5         40         1               2         49         1               2.5         57         1               3         61         1               3.5         69         1               4         75         1               4.5         79         1               5         85         1               5.5         92         1               6         93         1               6.5         102         1               7         108         1               7.5         109         1               8         117         1               8.5         118         1               9         125         1               9.5         126         1               10         132         1          Features:   Hss Drill Bit Set For Wood、 Plastic And Aluminum   Ideal For DIY、 Home And General Building\/Engineering Using   The surface has been titanized、 sharp edge、 high hardness、 good toughness、 quick cutting speed、 long service life、 durable.   The craft work of 135 degree apex angle and double apex angle enhanced friction force、 not easy slip、 work efficiently.   The suitable tools are electric hand drill and impact drill、 applicable for punching on angle iron、 wood、 plastic、 metal sheet、 iron sheet and other materials、 do not apply to thick steel plate       Package Included:   1x Set (18pcs)Twist Drill Bits       More Details: