Twist Drill

Item No :MP21915

  The main role of the twist drill is to complete the following three key steps in the rotary cutting process through its unique helical groove design:

1.Cutting: The tip of the drill bit (chisel edge and main cutting edge) extrudes and cuts the material.

2.Chip removal: The rotating spiral groove (chip removal groove) acts like a conveyor to continuously discharge chips generated during the cutting process from the hole, which is the key to preventing the drill bit from getting stuck and overheating.

3.Chip containment and cooling: The helical groove provides a space for debris and also provides a channel for cutting fluid to flow into the drilling area, cooling and lubricating the drill bit.

🧰Main purpose

Twist drills have extremely wide uses, covering almost all areas where drilling is required:

​​1. Metal working (most common and main uses)

--Mechanical manufacturing: machining bolt holes, pin holes, craft holes, etc. on parts.

--Car maintenance: Drill holes in frames and sheet metal parts.

--Mold processing: Processing cooling water holes, thimble holes, etc. of various injection molds and die-casting molds.

​​2. wood processing

--Woodworking: Drilling holes in furniture and woodwork for splicing, installing hinges and hardware.

--Decoration construction: Drilling holes on wooden keel and wooden panels.

​​3. Building materials construction

--Drill holes in concrete or brick walls (usually require the use of special carbide drill bits or impact drills/electric hammers).

--Install brackets, pipelines, doors and windows, etc.

​​4. Plastic and composite material processing

Drill holes in composite materials such as plastic sheets, pipes and glass fibers.

​​5. Other common scenarios

Daily home maintenance, DIY projects, such as hanging pictures, installing shelves, etc.

 

 

 

Precautions for use

1.Select the right drill bit: Select the corresponding material and type of drill bit based on the processing material (for example, do not use ordinary HSS drill bits to drill stainless steel for a long time).

2.Keep it sharp: Blunt drill bits create high temperatures, increase wear, and drill inaccurate holes. Drill bits should be sharpened or replaced in time.

3.Pay attention to cooling: When machining metal, appropriate use of cutting fluid or lubricating oil can significantly reduce the temperature, extend the life of the drill bit, and improve the quality of the hole wall.

4.Stabilize speed and feed: Too fast speed or too high feed pressure can easily lead to overheating, wear and even fracture of the drill.

5.Safety first: Wear goggles to ensure that the workpiece is firmly clamped to prevent damage caused by breaking the drill bit or splashing debris.

 

 

 

 

 

 

 

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