ITEM NAME:5pcs HSS M2 Twist Drill Bit Set Quick Change Hex Shank 2-6mm Wood Metal Plastic Product Description: Model: 6542 quick change handle twist drill Product material: handle carbon steel + bit high speed steel 6542 Product specifications: 2mm, 3.2mm, 4mm, 5mm, 6mm Use material: thin stainless steel, aluminum alloy, iron, steel, wood, tung, plastic and other holes. Thickness 2-5mm sheet. Packing: plastic packaging Package Include: According to your Choose!.Model: 6542 quick change handle twist drill. Product specifications: 2mm, 3.2mm, 4mm, 5mm, 6mm. Use material: thin stainless steel, aluminum alloy, iron, steel, wood, tung, plastic and other holes. Thickness 2-5mm sheet.