· Type: 4-32mm Step Cone Drill Bit

· Includes 13 Step Sizes: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm.

· Easy Drilling: Provides Faster, Smoother Cutting.

· Widely Used: Small Pressure, Can Cut Through Wood, Sheet Metal, Steel And Other Surfaces.

· Ideal For Diy: Tiny Home And General Building / Engineering Using.