ITEM NAME:2Set Step Dril Bit 3-20mm HSS 4241 Hex Titanium Step Cone Drill Bit Description: Made from high quality HSS steel, with the Titanium coated to reduce friction and heat The ladder of its unique structure, a bit can open a variety of specifications of aperture Do not need to use the center punch, compared with ordinary twist drill, more durable Deburring, chamfering, elliptic hole enlargement, twist drill, drill, bench drill Suitable for using to cut holes in various materials such as steel, brass, wood, plastic, etc Specification: Material: HSS / High Speed Steel Surface Treatment: Titanium Coated gold 3 Step Drills Dimension: 4-20:9 (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm) 3-12:10 (3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm) 4-12:5 (4mm,6mm,8mm,10mm,12mm) Package Includes: 2x Set (3 pieces) HSS Step Drill Bit Note: The colors may be different for the different display, please understand Please allow 1-3mm error due to manual measurement, make sure you do not mind before you.Made from high quality HSS steel, with the Titanium coated to reduce friction and heat. Material: HSS / High Speed Steel. 2x Set (3 pieces) HSS Step Drill Bit. Do not need to use the center punch, compared with ordinary twist drill, more durable.
