Name: Hss Step Drill Bit
Brand: Dawning
SKU: 220918417

Product Specification

ITEM#	D116003
Product Name	Hss Step Drill Bit
Type	Countersink Drill Bit, Step Drill Bits
Shank	There are various types of shanks that are commonly used for drilling and driving purposes. These include triangle shanks, round shanks, hex shanks, and hex shanks with a step. Each of these shanks has its unique characteristics and uses. The triangle shank, for instance, has a triangular shape and is commonly used for drilling holes in soft materials like wood and plastic. On the other hand, the round shank, as the name suggests, has a circular cross-section and is used for drilling holes in harder materials like metal and concrete. The hex shank is another popular type of shank that has six sides and is mainly used for screwdriver bits and drill bits. It provides a firmer grip than the triangle and round shanks, making it ideal for heavy-duty drilling tasks. Lastly, there is the hex shank with a step, which has a stepped-down diameter that allows it to be used with different types of drill chucks. This shank is commonly used for drilling holes in metal sheets and similar materials. Having a good understanding of the various types of shanks available will help you choose the right tool for your specific drilling or driving needs.
Flute	Straight Flute, Spiral Flute
Color	Designed
Customized support	OEM/ODM
Brand Name	DURAMAKE
Place of Origin	Hangzhou, China
Dimensions	Same as sample
Size	4-12mm,4-20mm,4-32mm
Material	HSS 4241/4341/M2/M35
Process	Fully Ground
Application	Stainless steel, aluminum, iron, carbon steel, and plastic are some common materials used in various industries. These materials have distinct properties and are suitable for specific applications. Stainless steel is known for its corrosion resistance, making it popular in the food and pharmaceutical industries. It is also used in architecture and construction due to its aesthetic appeal and durability. Aluminum, on the other hand, is lightweight and has excellent thermal and electrical conductivity. This makes it ideal for manufacturing aircraft, automotive parts, and electrical components. Iron is a versatile material that has been used for centuries. It is known for its strength and can be found in construction, transportation, and machinery. Carbon steel, a type of steel with a higher carbon content, is particularly strong and can withstand high temperatures. It is commonly used in manufacturing tools, machinery, and pipelines. Plastic is a widely used material due to its versatility, low cost, and ease of manufacturing. It is used in various industries, including packaging, automotive, electronics, and construction. Plastic offers flexibility in design and can be molded into different shapes and sizes. In conclusion, these materials play an essential role in modern society. Understanding their properties and applications is crucial for choosing the right material for specific projects or products.
Finish	黑氧化，亮光，锡镀，锆涂装。
Lead Time	To be negotiated
Package Detail	Wooden Box
Port	Ningbo/Shanghai

Product Features

Hss Step Drill Bit

Content:

1pc 4~12mm, 5 steps

1pc 4~20mm, 9 steps

1pc 4~32mm, 15 steps

4-32mm spiral groove

Handle diameter: 10mm

Spacing of each step: 5mm

4-20mm spiral groove

Handle diameter: 8mm

Spacing of each step: 5mm

4-12mm spiral groove

Handle diameter: 6mm

Spacing of each step: 5mm

The high-temperature quenching and precise grinding make the drill edge sharp and resistant to wear.

With the strides in scientific research and development, cutting edges have become much smoother, resulting in a smoother cutting experience.

The knife body is made using Seiko technology, resulting in an exceptionally solid construction.

When it comes to ladder drills, the spiral groove variation stands out from the ordinary ones in several ways. Firstly, it has an excellent chip removal ability that eliminates the possibility of clogging, which can negatively impact the precision of the drilling process. Additionally, it provides better guidance for the user, ensuring maximum accuracy in the drilling operation. The spiral groove ladder drill also has the added advantage of deburring, chamfering, opening and reaming, and creating smoother cuts. These features make it a better choice for those looking to achieve a high-quality finish in their drilling tasks.

The machine has a wide range of applications as it can easily process various materials with a thickness of 4mm. These materials include thin iron plates, PVC boards, insulating boards, aluminum, and wood boards. However, for materials with high hardness such as quenched steel plates and stainless steel, it is recommended to use the machine for a more effective result.

Material: high speed steel 4241 (suitable for workpieces with hardness below 25 °, such as wood, thin iron plate, etc.)

Specifications

4-32mm（4，6，8，10，12，14，16，18，20，22，24，26，28，30，32mm）

4-20mm（4，6，8，10，12，14，16，18，20mm)

4-12mm（4，6，8，10，12mm)

Packing: plastic square tube, bubble shell. Iron, nylon bag

Forged with high-quality 4241 high-speed steel, the surface is titanium plated, rust proof and wear-resistant. One drill can open multiple specifications.

1. Unique step structure, one drill bit can open holes of various specifications and sizes, and one step can reach a box of drill bits.

2. There is no need to use center punch, which is not easy to break compared with ordinary twist drill. For on-site construction, one step drill is applicable to a variety of specifications.

3. Deburring, chamfering, elliptical hole expansion, twist drill can not complete the function, it becomes possible.

4. Compared with ordinary twist drill. Small shaking, can open a beautiful hole without using the center punch.

5. Tools used: pistol drill, bench drill. Water injection cooling while working can effectively prolong the service life of the bit. The recommended ROP is 250-400 rpm.

Why Dawning

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