Step Drill Bit for Metal Wood, 6-30mm Cone Step Drill Bit Step Hole Cutter Nitriding High Speed Steel Hole Cuttet for Aluminum Plastic

4241 high speed steel construction for high strength and nitriding surface treatment to make the drill bit harder to ensure long durability.
Make your tasks smooth with this all-in-one impact ready which offers multiple sizes, avoiding the need for multiple drill bits. Please mark the spot that you are to drill for easier drilling and improved drill bits life.
It has excellent quality, long service life, saving cost for you, improving the efficiency and effectiveness of your drilling tasks.
It needs to work with electric drill, bench drill, etc. This versatile drill bit is not only ideal for metalworking, but also perfect for drilling holes in wood, plastic, and other materials, making it a practical addition to your toolbox.
It can drill and expand hole on iron sheet and aluminum sheet up to 2mm thick.

Specification:
Item Type: Step Drill Bit
Material: High Speed Steel
Surface Treatment: Nitriding Black
Total Length: Approx 19.5mm / 0.77in

Package List:
1 x Step Drill Bit

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