Skip to content 
This carbide drill bit set is designed for precision drilling in demanding metalworking applications. Manufactured from premium-grade substrates, each solid carbide drill bit set delivers excellent hardness, heat resistance, and wear stability, making it suitable for continuous CNC drilling. The optimized flute geometry ensures smooth chip evacuation and stable cutting performance in steel, stainless steel, cast iron, and hardened materials.
As a professional tungsten carbide drill bit set for metal, it provides accurate hole size, reduced vibration, and extended tool life compared with conventional drills. Whether used for batch production or precision components, this carbide drill bit set for hardened steel offers reliable performance for workshops seeking the best carbide drill bit set for consistent, high-efficiency machining.
Grade HN40 is made from submicron WC powder, some speclal additlves added to optimize theproperties with good combination of hardness and toughness.
Its suitable for making drills and miling tools for machining stainless steel, tool steel and heat-resistingalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN40 | 10 | 0.8 | 14.45 | 91.8 | 1,580 | 3,600 | 11.8 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| TiXCo3 | Advanced nanocomposite multilayer PVD coating based on Ti, Al, Cr and Si; usually built with a TiN or CrTiN adhesion layer, an AlTi(Si)N core and an extremely hard TiSiN nano-composite top layer. Copper-coloured coating designed specifically for hard-machining tools such as solid carbide drills. | Nano-hardness: 42–44 GPa (≈4300–4500 HV). Coefficient of friction: ~0.4 (PoD test, room temperature, 50 % humidity). Coating thickness: typically 1–4 µm. Maximum service temperature up to about 1,000–1,100 °C, giving excellent thermal stability and oxidation resistance for high-speed drilling in hard materials. | Copper appearance; delivers very high surface quality of the hole and extremely high wear resistance. Our hardest nanocomposite coating, optimized for hard machining and finishing operations in drilling, milling and reaming at very high cutting speeds. Suitable for dry or near-dry machining and for difficult-to-cut, abrasive alloys where long, stable tool life is required. | Recommended workpiece materials: hardened steels (up to ~60–64 HRC), stainless steels, tool steels, nickel-based superalloys, cast irons and other hard or abrasive metals. Typical application fields for drills: high-precision deep-hole and high-speed production drilling of dies and moulds, power-train and transmission components, aerospace turbine and structural parts, and other hard-machining operations demanding tight tolerances and excellent hole finish. |
Our Drill Bits drawings clearly show key Drill Bits dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right Drill Bits sizes for your CNC setup and machining depth before ordering.
A carbide drill bit set is suitable for steel, stainless steel, cast iron, aluminum, and other metals. Specialized sets are also available for hardened steel and high-strength alloys.
A tungsten carbide drill bit set made from solid carbide provides better rigidity and consistency than carbide-tipped drills, which are typically used for lighter-duty applications.
Yes, but only a carbide drill bit set for hardened steel with appropriate carbide grade and coating should be used to avoid edge chipping and premature failure.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
Our carbide drill bit set is designed to handle a wide range of metal drilling applications, from general machining to demanding industrial production. Each tungsten carbide drill bit set for metal is suitable for steel, stainless steel, cast iron, and selected hardened steels, delivering stable performance in CNC machining centers and precision drilling operations.
Compared with standard HSS sets, a solid carbide drill bit set offers higher rigidity, better heat resistance, and improved dimensional accuracy, especially in high-speed or continuous drilling. Whether you are evaluating options similar to a Bosch carbide drill bit set or searching for the best carbide drill bit set for consistent metalworking results, this series provides reliable drilling performance across multiple materials and machine platforms.
Each carbide drill bit set is manufactured from premium-grade carbide substrates and finished with advanced CNC grinding to ensure precise geometry, sharp cutting edges, and controlled runout. This results in accurate hole positioning, smoother chip evacuation, and extended tool life in metal drilling applications.
Our tungsten carbide drill bit set options are available in standard and customized configurations, covering common diameters used in production environments. Designed as a professional carbide drill bit set for metal, these tools outperform typical cobalt or coated HSS sets in terms of wear resistance and consistency. For users comparing industrial alternatives such as a DeWalt or Milwaukee carbide drill bit set, our solution delivers dependable quality, repeatability, and value for long-term machining operations.
We Are Commited To Providing High-Quality, Customized solutions At An Affordable price While Also Prioritizing sustainability And ExcellentCustomer Service, These Qualities Make Us A Great choice For Your Carbide Drill Bit Set Needs
We Only Use unground tungsten carbide rods with HlP sintering and100% virgin material. Our grade includes lsO K05 to K40, frommachining carbon steel to aluminium, non-ferrous metals andtitanium or we develop grade for your applications.
As a HNCarbide customer, you can enjoy five-axis high-precisiongrinding machines from Australia’s ANCA or Germany’s Walter. Themodern workshop with constant temperature and humidity ensuresthe accuracy of each Carbide Drill Bit Set.
Each of your tungsten steel Carbide Drill Bit Set will be sandblasted toeffectively remove burrs and improve the finish.
All HNCarbide’s Carbide Drill Bit Set will be monitored on WALTER HELICHEEK and ZOLLER GENlUS 3 to ensure that every dimension is qualified. We arecommitted to controlling the tolerance within 3 UM.
At HNCarbide, every shipment is meticulously packaged to ensure your tools arrive intact.
Each HNCarbide Carbide Drill Bit Set is individually placed in a shock-resistant protective case, labeled with complete specifications, and sealed in moisture-proof packaging material before being boxed.
Large-volume orders are reinforced with double-wall cardboard boxes or wooden crates to maximize safety during international shipping.
We collaborate with reliable logistics partners to ensure goods are delivered quickly and securely to their destination via air freight, sea freight, or express courier.
A carbide drill bit set is suitable for steel, stainless steel, cast iron, aluminum, and other metals. Specialized sets are also available for hardened steel and high-strength alloys.
A tungsten carbide drill bit set made from solid carbide provides better rigidity and consistency than carbide-tipped drills, which are typically used for lighter-duty applications.
Yes, but only a carbide drill bit set for hardened steel with appropriate carbide grade and coating should be used to avoid edge chipping and premature failure.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
If your shop drills metal every day, a “good enough” drill set quickly becomes expensive. Broken drills, inconsistent hole size, and poor chip evacuation cost time, scrap parts, and reduce confidence in your process. That’s why more manufacturers are upgrading to a carbide drill bit set for production drilling—especially when speed, accuracy, and tool life need to be consistent.
This guide explains how to pick the right carbide drill bit set for metal, when a solid carbide drill bit set is worth it, and how to evaluate options when comparing mainstream sets such as a Bosch carbide drill bit set, DeWalt carbide drill bit set, or Milwaukee carbide drill bit set.
Not all “carbide” sets are the same. Many retail drill sets are carbide-tipped rather than fully solid. A carbide-tipped drill may work well in some situations, but it can also be more sensitive to impact, inconsistent sharpening quality, and tip failure when conditions are harsh.
A true tungsten carbide drill bit set—especially a solid carbide drill bit set—uses carbide as the full body material. That gives you higher rigidity, better hot hardness, and improved wear resistance. In real metalworking, that translates to more stable drilling at higher surface speeds, more consistent hole size, and longer tool life when everything else in your setup is controlled.
In metal drilling, chips are either your friend or your enemy. When chips evacuate cleanly, the drill stays cooler and the cutting edge stays intact. When chips pack, everything goes downhill: heat rises, the margin rubs, the cutting edge chips, and the drill breaks.
A well-designed carbide drill bit set for metal focuses heavily on flute design, core thickness balance, and edge preparation. Even with the best carbide grade, poor chip flow can destroy tool life. If your shop frequently drills deeper holes, drills at high feed, or works with sticky materials like stainless, flute geometry becomes just as important as the carbide itself.
Many listings use “tungsten carbide” as a marketing phrase. What matters in practice is whether the drill is solid carbide, how the geometry is ground, and how consistent the manufacturing is.
A solid carbide drill bit set generally offers:
Stronger rigidity for accurate positioning and less wandering
Better wear resistance for longer runs
More stable performance in CNC applications
Higher sensitivity to runout (meaning your holders and setup must be good)
If your machine setup is rigid and runout is controlled, solid carbide delivers clear benefits. If runout is high, or the process is unstable, you can still use carbide—but you may need tougher geometry, more conservative parameters, or a different tool choice.
A single carbide drill bit set can’t be “perfect” for every metal, but you can choose a set that fits your main workload.
For mild steel and alloy steel:
Prioritize balanced geometry and stable margins. A general-purpose carbide drill bit set for metal should drill cleanly without squeal and hold size over repeated holes.
For stainless steel:
Heat and built-up edge are common issues. Look for a tungsten carbide drill bit set for metal option with geometry tuned for stainless—good chip control, stable cutting edges, and features that reduce friction and heat.
For cast iron:
Abrasive wear and powdery chips are typical. You want strong wear resistance and edge stability. Chip evacuation is often easier, but edge protection and abrasion resistance matter more.
If your application includes hardened parts, don’t assume any carbide set will work. A dedicated carbide drill bit set for hardened steel should focus on edge strength, thermal stability, and controlled cutting action. Hardened drilling is less forgiving: a small defect in setup or a slight runout problem can chip the edge instantly.
For hardened steel, success usually depends on:
Correct geometry for edge strength (not just sharpness)
Heat control (coating and parameters)
Stable machine rigidity and minimal runout
A drilling strategy that avoids excessive shock at entry/exit
If hardened drilling is occasional, you might keep a specialized subset rather than forcing one general set to do everything.
When people search for a best carbide drill bit set, they often land on well-known brands: Bosch carbide drill bit set, DeWalt carbide drill bit set, or Milwaukee carbide drill bit set. These sets can be convenient and widely available, and for many users they perform well within their intended positioning.
But for production metalworking, the most meaningful comparison is not the logo—it’s measurable performance drivers:
Geometry consistency from drill to drill
Runout sensitivity and shank accuracy
Chip evacuation stability in your material
Edge integrity and wear rate over long runs
If your shop drills daily and downtime costs real money, an industrial-focused carbide drill bit set (with controlled manufacturing and application-specific options) often delivers better total cost of ownership—even if the per-tool price looks higher.
A set should match how your parts are made. Instead of buying a “big set” you rarely use, focus on the sizes you drill most frequently. Production shops often benefit from:
Tight coverage in the most-used diameter ranges
Replacement availability for common sizes
Consistent performance across the set, not just one or two drills
If you have specific hole families, consider a customized set build—especially when hole tolerances matter.
Before choosing a carbide drill bit set, ask:
What material is this set optimized for—steel, stainless, cast iron, or hardened steel?
Is it truly a solid carbide drill bit set, or carbide-tipped?
How stable is chip evacuation for your hole depth and cycle time?
Can your holders and setup support low runout for carbide drills?
Are replacements and custom sizes easy to get?
The “best” set is the one that fits your materials, machine rigidity, and production goals. A well-built carbide drill bit set can dramatically improve hole quality and reduce tool changes—especially when you choose the right geometry and keep chip evacuation stable. If you drill metal daily, upgrading to a tungsten carbide drill bit set or solid carbide drill bit set is often one of the fastest ways to improve consistency and reduce hidden costs.
Before you go, please note that we offer the most up-to-date industry research reports and the most comprehensive product catalogs, so please contact us if you are interested!
Before you go, please note that we offer the most up-to-date industry research reports and the most comprehensive product catalogs, so please contact us if you are interested!
Optimized by Seraphinite Accelerator