3pcs Spiral Step Drill Bit Set

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3pcs Spiral Step Drill Bit Set Technical Specifications
Step design enables multiple-diameter drilling with only one bit
step drill bit with 2-flute design for drilling in steel, stainless steel, copper, aluminum sheets
Made of high-speed steel and titanium coated for more durability and long life
3-flat shank prevents slipping in drill chuck
Various drill ：4-12mm;4-20mm;4-32mm
New Speed Point tip for fast penetrate and prevent drill bit walking
Includes 3-piece spiral drill with metal body
Step drills are designed for drilling repetitive holes in steel, stainless steel, copper, brass, aluminium, plastic, plexiglas, laminates and many other thin materials.
Manufactured from premium quality high speed steel with double fluted ground cutting edges for long service life.
No pilot hole required.
Easy to sharpen.
Stepless drilling in the thinnest sheets.
Burr-free drilling without sheet deformation.
Automatic deburring.
Spiral flutes enable easier tool penetration.

For fast, accurate drilling into hard materials like stainless steel, copper, or aluminum without the hassle of changing bits, the 3-piece spiral step drill bit set is the perfect choice. These bits feature a 2-flute design for quicker material removal and cleaner, more precise holes. Made of high-speed steel with a durable titanium coating, they offer long-lasting performance. The 3-flat shank prevents slipping in the chuck, while the new speed point tip ensures smooth, efficient drilling.

1.It is produced by different kinds of materials, such as HSS 4241, HSS 4341, HSS 6542(M2), HSS M35, HSS M42.
2.Different sizes of the Shank: 1/4″ Hex Shank, 7/8″ Hex Shank, Triangle Shank, Round Shank, Square Shank and so on.
3. It is ideal for drilling thin stainless steel plates, aluminum plates,plastic, wood, non-combustible materials, expanding holes, drilling holes, and processing curved surfaces such as pipes.
4.Since the hole is gradually expanded from a small hole to a large hole, drilling of multiple sizes and expansion of the hole are possible.The bite to the tip of the bamboo shoot drill is also finished to feel better than ordinary drills.
5.Step drills two-flute spiral grooved design is deburrs chip, dust and debris for clearance and smooth cutting.
6.118 degree pointed angle with right hand cutting.

HSS TiN Coated Spiral Flute Step Drill Set – Metric
Step drills are designed for drilling repetitive holes in steel, stainless steel, copper, brass, aluminium, plastic, plexiglas, laminates and many other thin materials.
Manufactured from premium quality high speed steel with double fluted ground cutting edges for long service life.

What is a step drill bit?
A step drill bit allows you to drill different sized holes with a single bit. The bit is cone like shaped, so the further you drill into the material, the wider the hole will get.

It is a very small and handy accessory for any professional tradesmen, and can be used in many applications, especially when drilling through sheet metal. For example, an electrician may use these for drilling the correct size hole in a junction box and panel, or by an automotive technician when carrying out installations and repairs. Quick Change Hex Shank Spiral Flute Step Drill Bits

Tradesmen love step drill bits as they improve working efficiency as there is no need to change the drill bit to get the correct size hole.

What is a step drill bit used for?
Step drill bits are mainly used to cut holes in metal. They are also used to drill wood, acrylic, and other plastics, but one limiting factor of the step drill bit is that they are only suitable for cutting thin materials, such as sheet metal. The material has to be 5mm thick or thinner for the step drill to be able to drill through it. 3pc HSSM35, HSSM2 and HSS4241 TiN Coated Spiral Step Drill Bits

The step drill bits can help to both drill holes, and also enlarge current holes. This is because of the shape of the drill bit, allowing it to efficiently enlarge holes to the correct size with the help of the step design.

Step drill bits are great for cutting through plastic, it offers a very smooth cut and finish without damaging the hole or material. They are also great at cutting through thin metal, as it cuts it very smoothly compared to twist drills, and slowly shaves off the metal leaving a smooth beveled edge to the metal.  3pc Metric HSS TiN Coated Spiral Flute Step Drill Kit