Solid Carbide Flat Bottom Drill Bit
Compliant with ISO 9001 quality standards.
Customizable carbide flat drills in any size.
Fast sample production.
MOQ only 3 pieces to support your business development.
Custom Carbide Flat Bottom Drill Bits Manufacturer in Thailand
ZLY flat drills can perfectly perform various drilling operations and work excellently on curved surfaces, inclined surfaces, and irregular surfaces. They do not slip at all and can adapt to drilling on any complex surface.
ZLY flat drills are made of solid carbide, featuring extremely high hardness and heat resistance. They are suitable for machining most materials, such as aluminum alloys, copper alloys, cast iron, hardened steel, stainless steel, titanium alloys, etc.
The Important of Choosing ZLY Carbide Drilling Tools
ZLY solid carbide flat bottom drills are designed for high-efficiency, high-quality production. Their main features include the use of premium carbide materials with hardness above 90 HRA (from leading brands such as Guhring), as well as industry leading tool coatings from Oerlikon and Balzers.
These advantages ensure excellent wear resistance, extremely long tool life, and very high machining efficiency. With extensive experience in industries such as automotive, aerospace, and medical device manufacturing, we are able to design and produce professional cutting tools that best meet your specific application requirements.
Custom Flat Bottom Drill Size Range Available from ZLY
ZLY’s strong manufacturing capability can meet all machining applications that require solid carbide cutting tools. Our CNC drilling tools are best for machining metals such as aluminum, copper, steel, stainless steel, titanium alloys, and hard metals. Below is the size range of flat bottom drills we can produce.
|
Cutting Diameter |
0.2mm – 35mm |
|
Cutting Length |
0.2mm – 250mm |
|
Shank Diameter |
1mm – 32mm |
|
Overall Length |
20mm – 330mm |
|
Helix Angle |
15° – 75° |
|
Coating Services |
TiN, TiCN, TiAIN, ALTiN, DLC, etc. |
Send Your Inquiry On ZLY Carbide Flat Bottom Drills
Additional Services
Beyond supplying high-quality cutting tools, we also offer the following services:
- Competitive pricing
- Free tool design based on your workpiece drawings
- Free dimensional inspection based on your tool samples
- Laser marking according to your requirements
- Free local delivery within Thailand
Recent Walk in Flat Bottom Drills Order
ZLY: Your Professional Solid Carbide Flat Bottom Drill Bits Manufacturer
ZLY cutting tools can provide customized high-quality CNC tungsten carbide tools.
They are commonly used in machining across various industries.
ZLY is committed to providing you with the best non-standard carbide tools to ensure machining accuracy, high efficiency, and reliability.
By choosing ZLY customized cutting tools, we can help ensure the applicability and performance of our competitive products.
ZLY engineers help customers design the optimal carbide flat bottom drill bits.
You are welcome to contact us to customize special-size non-standard flat bottom drills.
The Importance of Flat Bottom Drills in Modern Machining
In the machining industry, the correct cutting tool determines machining quality and efficiency.
In hole machining, whether using lathes or modern CNC machining centers, flat-bottom drills are commonly used and important tools.
Many technicians who are new to the industry are often confused about when to use a flat-bottom drill, how it differs from other types of drills, and which machining scenarios it is suitable for.
Today, we will explain in detail the application timing and usage techniques of flat-bottom drills, helping you make the most efficient tool choices in your work.
What is a flat-bottom drill?
The biggest characteristic of a flat-bottom drill is that its cutting end has a flat cutting surface, which is clearly different in appearance from common twist drills or center drills. To some inexperienced apprentices, it does not appear to be significantly different from a two-flute end mill.
Core advantages of flat-bottom drills
Understanding the advantages of flat-bottom drills is the prerequisite for using them correctly. In the following application scenarios, flat-bottom drills can deliver better drilling results.
- Inclined surface machining
- Through-hole machining on curved surfaces
- Counterbore machining
- Through-hole machining of thin plates
- Counterbore machining on curved surfaces
- Cross-hole machining
- Pilot hole machining
- Eccentric hole correction
- Half-hole machining
Through-hole machining of thin plates 
Cross-hole machining 
Inclined surface machining 
Inclined surface machining 
Counterbore machining on curved surfaces 
Half-hole machining
Because the cutting edge of a flat-bottom drill is flat, it starts cutting as soon as it contacts the workpiece. During the feed process, cutting progresses from partial edge engagement to full edge engagement. This characteristic means it is not affected by the cutting surface; inclined surfaces, curved surfaces, uneven surfaces, and irregular surfaces do not affect the drilling result.
What is the difference between a flat-bottom drill and a standard drill?
Flat-bottom drills have several key characteristics that other drills do not have.
Structurally, the tip of a flat-bottom drill is 180°, rather than a pointed angle like other drills.
In terms of machining method, a flat-bottom drill starts cutting material immediately upon contacting the workpiece, while a pointed drill begins cutting only after downward pressure is applied.
In terms of hole shape, a flat-bottom drill leaves a flat bottom (such as for counterbored holes), while a standard drill leaves a hole with a pointed bottom structure.
What should be noted when drilling stainless steel with a flat-bottom drill?
The work-hardening property of stainless steel places high demands on the tool. When drilling flat-bottom holes, it is recommended to use a coated flat-bottom drill, such as TiAlN, while ensuring sufficient coolant supply, reducing cutting speed, and increasing feed.
When drilling on a flat surface, should you use a flat-bottom drill or a twist drill?
If there is no specific requirement for a flat-bottom hole or blind hole, a carbide twist drill is more efficient and accurate for drilling on flat surfaces.
This is because, if the machine lacks sufficient rigidity, the flat-bottom drill may experience deflection or vibration when its tip first contacts the flat surface, potentially causing tool breakage in severe cases.
Twist drill with a pointed tip for centering does not have this issue.