Step Drill Bit for Metal, High-Speed Steel Step Drill Bit, Practical Multi-Purpose Scale Accurate Drilling Multiple Hole Step Drill Deburring for Plastic Plate for Copper Plate for Aluminum Plate (1 pc / 4-12 MM) Description :- The high-Speed steel step Drill Bit is made from high quality HSS steel and are Titanium coated to reduce friction and heat. These Step Drill Bits Are Ideal For a Variety Of Materials From Metal, Plastic, Fiberglass To Wood. Flute Design Tips Can Make The Penetration Faster Without Chipping The flute design provides faster, smoother and cleaner cuts. Replacement for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal). Dimension :- Volu. Weight (Gm) :- 44 Product Weight (Gm) :- 24 Ship Weight (Gm) :- 44 Length (Cm) :- 14 Breadth (Cm) :- 6 Height (Cm) :- 2