NUTTDOO Step Drill Bit Set, 3pcs HSS Bits High Speed Steel Set for DIY Plastic Wood Metal (4 12mm, 4 20mm and 32 mm)

The Step Drill Bit set contains 3 sizes: 4-12mm, 4-20mm and 4-32 mm,Come with one portable fabric bag. 3 SIZES DRILL BITS SET INCLUDES: 5 steps: 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm); 9 steps: 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); 15 steps: 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm) High Quality: SS Step Bits are made of classic high-speed steel materials,with titanium coating.Provide good heat,wear and chip resistance,easy to drill and precise holes.The step drill bits are perfect for you to DIY. Wide Application:The Step drill bits can process different diameter holes,Idea for drilling holes in sheet metal,aluminum,brass,copper,wood,iron and plastic.Your best choice for DIY projects,furniture making or metalworking applications. Easy to Use:The bits have 1/4-inch hex shank,Easy to Fits and securely into most power drills tools to prevent slippage and shedding during rotation