Triple-flute Design & C-Profile Design

EZARC Step Drill Bits feature a triple-flute design for enhanced stability, effectively addressing issues of deviation during the cutting process. Additionally, 'C-profile' cutting edge ensure smoother cutting and 2X increase in cutting speed.

M35 HSS Step Drill

M35 cobalt high-speed steel achieves high levels of hardness and wear resistance through appropriate heat treatment. Its toughness and bending strength surpass those of standard high-speed steel, making this step drill bit more suitable for cutting harder materials, such as mild steel, medium hardness steel, stainless steel.

AlTiN Coating

Step bits coated with aluminum titanium nitride, rated at 89HRC for exceptional hardness and thermal properties. This coating offers superior resistance to heat, wear, and corrosion, with high adhesion and low friction. Laboratory tests show it more durable than steamed black oxide coating for longer bit life.

3 Pcs Step Drill Bit Set

The step drill bits are neatly organized in a compact case for easy transportation and storage. The spiral flutes and stepped design of the drill bits allow for seamless and efficient drilling through various thicknesses.

You can use EZARC step drills to cut or drill through various metals, including aluminum, brass, copper, cast iron, galvanized pipe, stainless steel, and low-carbon steel.

**Please Note**

Material thickness: Suitable for metal sheet up to 1/8" (3 mm) thick and stainless steel sheet up to 1 mm thick. Add cutting oil or use coolant during continuous operation. Due to the larger cutting angles, the startup speed may be slower.