Solid Carbide Drill
What is Solid carbide drill？
Solid carbide drills are a great option for excellent process security, manufacturing economy and good hole quality. They provide the best combination of penetration rate and precision. Our wide product range of solid carbide drills includes micro drills, versatile drills, optimized drills and drills for deep holes.
Advantages of Solid carbide drill
High Hardness and Wear Resistance
The hardness of cemented carbide can reach HRC 70–85, which is much higher than that of high-speed steel (HSS) drills (HRC 62–68), and its wear resistance is 3–5 times that of HSS.
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Excellent Thermal Stability
Cemented carbide can still maintain cutting performance at high temperatures of 800–1000°C, while the hardness of high-speed steel drops significantly at 550–600°C.
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High Precision and Rigidity
The one-piece design has no welding or assembly gaps, strong rigidity, low vibration, and is suitable for precision hole processing (tolerance up to ±0.005 mm, surface roughness Ra 0.8–1.6 μm).
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Versatility for Complex Materials
High hardness and anti-adhesion properties can cope with the high toughness and poor thermal conductivity of the material and reduce tool wear.
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Cost-Effectiveness in Long-Term Use
When machining 1,000 φ10 mm steel holes, the high-speed steel drill needs to be replaced five times, while the carbide drill only needs to be replaced once, reducing the overall cost by 40%–60%.
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Types of Solid carbide drill
1. Standard Solid Carbide Drills
Features:
Basic design with straight or helical flutes, common point angle (118°–140°), and uniform diameter along the cutting edge. Suitable for general-purpose drilling in various materials (e.g., steel, aluminum, cast iron).
Applications:
Machining workshops, automotive parts, and simple component manufacturing.
2. Micro Solid Carbide Drills
Features:
Extremely small diameters (typically φ0.1–φ3 mm).Precise grinding for sharp edges and optimized flute geometry to prevent breakage in tiny holes.
Applications:
Electronics (PCB drilling, micro-components), medical devices (surgical instruments), and watchmaking.
3. Deep Hole Solid Carbide Drills
Features:
High aspect ratio (depth-to-diameter ratio ≥5:1, up to 30:1).
Special flute designs (e.g., straight flutes for rigidity or spiral flutes for chip evacuation).Often with internal cooling channels (through-coolant holes) to improve heat dissipation and chip removal.
Applications:
Aerospace (turbine blade holes), mold making (cooling channels), and automotive (cylinder head deep holes).
4. Step/Tapered Solid Carbide Drills
Features:
Multiple diameters along the drill body (e.g., a "step" design with a smaller leading diameter and larger following diameter).Can drill pilot holes and counter bores in a single operation.
Applications:
Sheet metal fabrication (reaming and countersinking in one step), assembly holes requiring precise step dimensions.
5. Carbide Drill with Internal Cooling (Through-Spindle Coolant)
Features:
Drills with internal coolant channels that deliver coolant directly to the cutting edge.Reduces heat buildup and improves chip evacuation in high-temperature materials (e.g., Inconel, titanium).
Applications:
Aerospace alloys, high-nickel super alloys, and deep hole drilling in automated CNC machines.
6. Ball-Nose/End Mill Drills
Features:
Rounded tip (ball-nose) instead of a traditional point.Acts as both a drill and an end mill, capable of plunge milling and slotting.
Applications:
Mold and die making, aerospace structures (curved surface holes), and 3D contour machining.
7. Chip-Breaker Solid Carbide Drills
Features:
Grooves or serrations on the flutes to break chips into smaller pieces.Prevents long, chips in ductile materials (e.g., aluminum, low-carbon steel).
Applications:
High-volume production in automotive or electronics, where chip control is critical for automation.
8. Carbide Drills for Composite Materials
Features:
Specially designed tips (e.g., "K-style" or "trepanning" edges) to avoid delamination in CFRP (carbon fiber-reinforced polymer) or GFRP.Low-heat generation to prevent resin burning.
Applications:
Aerospace composite structures (e.g., aircraft wings, fuselages), wind turbine blades.
Applications of solid carbide drill
1. Aerospace Industry
Drilling holes in aircraft components made of high-strength alloys (e.g., titanium, Inconel, aluminum lithium).
Machining turbine blades, engine casings, and structural parts (e.g., wing ribs, fuselage panels).
Creating cooling channels in aerospace molds and components.
Drilling composite materials (e.g., CFRP/GFRP) for lightweight structures, requiring drills with anti-delamination tips.
2. Automotive Manufacturing
Drilling engine blocks, cylinder heads, and transmission components (e.g., aluminum, cast iron, hardened steel).
Machining brake systems, suspension parts, and powertrain components.
High-volume production of small holes (e.g., fuel injectors, spark plug holes).
Deep hole drilling for oil galleries and cooling passages.
3. Mold and Die Making
Drilling precision holes in molds for plastic injection, die casting, or stamping.
Creating cooling channels, ejector pin holes, and venting slots.
Ball-nose or step drills for complex 3D contours and multi-diameter holes.
4. Medical Device Manufacturing
Drilling holes in surgical implants (e.g., titanium knee/hip prosthetics).
Machining orthopedic instruments (e.g., drills for bone screws).
Micro-drilling in endoscopic tools and dental components.
5. Energy and Heavy Industry
Drilling in oil/gas components (e.g., valves, pipelines) made of stainless steel or exotic alloys.
Machining power generation parts (e.g., turbine disks, generator shafts).
Heavy-duty drilling in construction equipment (e.g., excavator parts, steel structures).
6. General Machining and Prototyping
Job shops and small-scale production for drilling in various materials (steel, aluminum, copper, plastics).
Prototyping of custom parts requiring high precision.
Maintenance and repair work for on-demand hole machining.
Why Choose Us
High Quality
Xinxing digital factory covers an area of 66666 m2 with an annual output of 6 million pieces. Introducing advanced information systems to achieve the whole process of digital management, forging reliable quality.
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Advanced Equipment
Workshops have modern production lines, equipped with CNC precision automatic lathe, vertical machining center, robots and other international advanced production equipment, to achieve fully automatic assembly line production, to ensure stable and superior quality.
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Professional Team
Xinxing's R&D team is composed of professional engineers in the fields of materials, tool design, heat treatment, cutting application technology, manufacturing processes, and other fields. It is a highly experienced and creative technology research and development team.
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Accept ODM/OEM
According to your process requirements, dedicated tools can be configured to improve efficiency or overcome the processing difficulties. Welcome to inquiry from us.
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Company profile
Zhejiang Xinxing Tools Co., Ltd., was founded in 1994, is a high-tech enterprise focusing on hole processing technology. Since its founding nearly 30 years ago, we will be adhering to "focus on improving self", the company has set up the mission of providing manufacturing industry with high efficiency & precision cutting tools, consistently implement the innovative development strategy, deeply cultivate the productivity of cutting tools and technology improvement.
Our products include: Annular cutter, rail cutter, hole saw, spade drill, step drill, countersink, magnetic drill machine, solid carbide cutter, taps, B T A deep hole drill, etc.
Nearly 30 years of accumulation, we are equipped with international leading R & D and testing equipment, established a production line for large number of professional CNC tools, become a high performance CNC tool manufacturer combined with R & D, production and sales. Nearly 30 years of efforts, the company has 100 patents approximately, leading the industry standards drafting of 《ANNULAR CUTTER》, 《Internal cooling replaceable inserts spade drill》, Won the "national manufacturing industry individual champion demonstration enterprise" and other honors, it has been closely cooperated with customers from more than 80 countries.
In the future, we will be adhering to "the concept of innovative development, win-win cooperation", we carry out the mission of "providing efficient precision cutting tools", continue to focus on deep tillage and efficient cutting technology, and strive to become a more reliable tool manufacturing brand of you.
Certifications
Our Factory
Test equipment
FAQ
Q: 1.What are the benefits of carbide drill bits?
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A: Their strength and precision make them ideal for cutting through hard metals like cast iron and steel. High-Heat Applications: Carbide drill bits excel in environments with high temperatures, thanks to their superior heat dissipation properties.
Q: 2. What is the strength of solid carbide?
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A: Solid carbide has high strength and can withstand heavy loads. Chemical resistance: Solid carbide is resistant to many chemicals, which makes it suitable for many industrial applications.
Q: 3.What are solid carbide drill bits used for?
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A: Carbide drill bits are the strongest for metal and can cut work-hardened ferrous metal, including stainless steel. Carbide metal drill bit sets are multi-purpose and can be used for creating holes of different sizes, improving efficiency in metalwork shops and other industrial settings.
Q: 4.Do carbide drill bits break easily?
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A: However, unlike high-speed steel, carbide is more brittle. Its extreme hardness makes it more likely to break under excessive stress, especially in high-shock or high-vibration situations.