6 PCS Step Drill Bit and Saw Drill Set HSS Drill Bits for Sheet Aluminum Iron Metal Stainless Steel Wood Hole Drilling Expanding Multifunction Spiral Grooved Step Drill for Woodworking Indus

6 PCS Step Drill Bit and Saw Drill Set HSS Drill Bits for Sheet Aluminum Iron Metal Stainless Steel Wood Hole Drilling Expanding Multifunction Spiral Grooved Step Drill for Woodworking Indus High speed steel drill set is multifunction and practical for home decoration and industrial use. The drills can be used for drilling or expanding wood stainless steel mold steel steel board and different kinds of metal material. Perfect accessories for electric drill! Features: 6 pieces/ set: 4-12mm/ 4-20mm/ 4-32mm step drill 3mm/ 6mm/ 8mm saw drill. bag package or storage box package for option. High speed steel material high strength and durability. Ti plating surface reduces the probability of drill and material bonding. This drill set can meet various needs and is mainly used for wood stainless steel mold steel steel sheet and different kinds of metal material. Perfect accessories the drill bits can be compatible with electric hand drill and lithium battery powered electric drill. Multifunction and practical tool for woodworking decor DIY industry etc. Compact and lightweight easy to carry. Note: Size and color may be slightly different because of manual measurement and different light conditions. Thank you for understanding. Specifications: Package: Bag/ Box (Optional) Material: High Speed Steel Surface : Ti Plating Step Drill: 4-12mm/ 4-20mm/ 4-32mm Saw Drill: 3mm/ 6mm/ 8mm Package Size: 12 * 10 * 3cm / 4.72 * 3.94 * 1.18in ( Bag); 17 * 11.6 * 3.3cm / 6.69 * 4.57 * 1.30in ( Box) Package Weight: 270g / 9.52oz ( Bag); 400g / 14.11oz ( Box) Package List: 3 * Step Drill 3 * Saw Drill