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Smart Cut Carbide Micro Drills
SMART CUT Carbide drills are made by combining tungsten particles with carbon and cobalt under high pressure and heat. This could be likened to a concrete post made up of sand and using cement as a binder. A carbide drill does not get dull because of wear like a steel drill does. It gets dull because the cobalt gets warm and it cannot hold the tungsten particles on the very fine cutting edges. Tungsten is a very hard metal and does not in itself experience much wear.



Application
- Low carbon steel
- High carbon steel
- Stainless steels
- Nickel alloys
- Cast iron
- Aluminum
- Copper – brass alloys
- Plastics
Specifications
Diameter tolerance is (+0/-0.0002") Call for specific diameters
- Material: Carbide
- Overall Length: 1.50"
- Shank Diameter: .125"
Two Flute - Four Facet Point
Item No. |
Outside Diameter |
Flute Length |
Specification |
---|---|---|---|
CBMD1 |
0.0015" |
.020” |
DRILL N/R.020"FL 90PT |
CBMD2 |
0.0020" |
.015” |
DRILL 015FL 90PT (50) |
CBMD3 |
0.0020" |
.020” |
DRILL 020FL 90PT (50) |
CBMD4 |
0.0020" |
.045’ |
DRILL 045FL 90PT (50) |
CBMD5 |
0.0021" |
.032” |
DRILL 032FL 90PT (50) |
CBMD6 |
0.0022" |
.015” |
DRILL N/S .015"FL 90PT |
CBMD7 |
0.0022" |
.020” |
DRILL N/R .020"FL 90PT |
CBMD8 |
0.0022" |
.020” |
DRILL 020FL 90PT (50) |
CBMD9 |
0.0022" |
.025” |
DRILL N/R .025"FL 90PT |
CBMD10 |
0.0022" |
.025” |
DRILL 025FL 90PT (50) |
CBMD11 |
0.0022" |
.045” |
DRILL 045FL 90PT (50) |
CBMD12 |
0.0025" |
.017” |
DRILL .017"FL 90PT N/S |
CBMD13 |
0.0025" |
.017” |
DRILL 017FL 90PT |
CBMD14 |
0.0025" |
.030” |
DRILL N/S .030"FL 90PT |
CBMD15 |
0.0026" |
.020” |
DRILL 020FL 130PT |
CBMD16 |
0.0029" |
.035” |
DRILL .035"FL 118PT |
CBMD17 |
0.0029" |
.035” |
DRILL .035"FL 90PT |
CBMD18 |
0.0031" |
.015” |
DRILL N/S .015"FL 90PT |
Advantages
-
High Precision: Allows for the creation of highly accurate and consistent micro-sized holes.
-
Customizability: Available in various sizes and with optional specialized coatings to suit specific application needs.
-
Innovative Design: Features unique flute designs for improved chip removal and coolant flow, reducing heat buildup.
-
Versatility: Compatible with a wide range of drilling machines, including CNC systems and high-speed drilling stations.
-
Reduced Tool Wear: Advanced geometries and materials reduce the frequency of tool replacements, lowering operational costs.
-
High-Speed Performance: Capable of operating at high speeds without compromising precision or tool integrity.
-
Minimized Drill Breakage: Robust construction significantly reduces the risk of breakage, even under intense operational conditions.
-
Optimal Chip Evacuation: Efficient chip evacuation maintains clean cutting areas, improving the overall drilling process and outcome.
-
Precision Cooling: Optimized coolant paths ensure effective heat dissipation, crucial for maintaining the longevity and performance of both the drill and the workpiece.
-
Low Maintenance: Designed for easy maintenance and cleaning, which is essential for maintaining performance in high-throughput environments.
About Carbide Micro Drills
SMART CUT® Carbide Micro Drills, precision-engineered for optimal performance in demanding drilling applications. Produced from high-grade carbide, renowned for its exceptional hardness and resistance to wear. This ensures that SMART CUT® Carbide Micro Drills not only last longer but also perform consistently under rigorous conditions.
SMART CUT® Carbide Micro Drills are available in a variety of sizes, starting from micro-scale diameters, which are perfect for industries that require tight tolerances and superior finishes. These drills are especially useful in fields such as electronics, medical device manufacturing, and precision engineering, where minute and precise holes are crucial.
SMART CUT® Carbide Micro Drills are available with a variety of point geometries, each suited to different materials and drilling techniques. From standard twist drills to specialized tip geometries designed to minimize entry and exit burrs, each drill is a product of extensive research and development.
The drills can be customized to meet specific requirements, offering flexibility in length, diameter, and even specialized coatings. These coatings, which include options like Titanium Nitride and Diamond-like Carbon, further enhance the drill's performance by reducing friction and increasing efficiency when cutting through hard or abrasive materials.
SMART CUT® Carbide Micro Drills are compatible with a range of precision drilling machines, including CNC equipment and high-speed drilling stations. This versatility ensures that they can be integrated seamlessly into any production line, enhancing existing setups with minimal adjustment.
What are coatings?
Coatings are thin layers of materials applied to the surfaces of cutting tools, such as carbide micro drills, using techniques like Chemical Vapor Deposition (CVD) or Physical Vapor Deposition (PVD). These coatings, which are usually just a few microns thick, serve to enhance the performance, durability, and functionality of the tools.
Why use coatings?
One of the main advantages of applying coatings to carbide micro drills is the significant increase in hardness and wear resistance they provide. Coatings like Titanium Nitride (TiN), Titanium Carbonitride (TiCN), and Diamond-like Carbon (DLC) enhance the surface hardness of the drills, making them more resistant to wear and abrasion. This allows the tools to last longer, maintain their sharpness, and require less frequent replacement, thus reducing downtime and the costs associated with tool changes.
Additionally, some coatings such as Titanium Aluminum Nitride (TiAlN) can withstand high temperatures, which is crucial for high-speed drilling operations that generate significant heat. These coatings act as thermal barriers, protecting the carbide substrate from the heat that could lead to softening or structural failure, and allowing for faster drilling speeds and prolonged tool life.
Coatings also improve lubricity and reduce friction. For example, DLC coatings have low friction coefficients, which minimize the amount of heat generated due to friction and prevent material from sticking to the drill. This reduces galling and welding of the work material to the drill, leading to smoother operations, finer finishes, and more precise holes.
Furthermore, coatings like Chromium Nitride (CrN) and nickel-based options provide excellent resistance to oxidation and corrosion. This is particularly important when drilling materials that are corrosive or when working in corrosive environments, thereby extending tool life and maintaining performance integrity.
Improved cutting efficiency is another benefit of using coatings. By reducing the energy and force required for cutting, some coatings enable more efficient material removal. This leads to better overall machining performance, including higher speeds, lower power consumption, and reduced wear on both the tool and the machine.
Coatings Available – Table of Comparison
Coating Type |
Hardness (HV) |
Heat Resistance (°C) |
Key Properties |
Typical Applications |
Materials Used On |
Features of Coating |
---|---|---|---|---|---|---|
Diamond-like Carbon (DLC) |
2000 - 5000 |
Up to 400 |
Low friction, high hardness |
Precision tools, automotive parts |
Steel, alloys, ceramics |
Reduces adhesive wear, minimal friction, enhances durability |
Titanium Nitride (TiN) |
1800 - 2300 |
Up to 500 |
Reduces wear, thermal stability |
General machining, cutting tools |
Steel, titanium, aluminum |
Increases surface hardness, extends tool life |
Titanium Aluminum Nitride (TiAlN) |
2800 - 3500 |
Up to 800 |
High hardness, thermal resistance |
High-speed and high-temperature applications |
High-alloy steels, titanium |
Excellent for high-temperature applications, resists oxidation |
Titanium Carbonitride (TiCN) |
3000 - 4000 |
Up to 400 |
Higher toughness, abrasive wear resistance |
Hard material cutting, milling tools |
Steel, hard metals |
Greater hardness than TiN, superior wear resistance |
Chromium Nitride (CrN) |
1600 - 2000 |
Up to 700 |
Corrosion resistance, hardness |
Corrosive environments, food processing |
Stainless steel, aluminum |
Good toughness, excellent against corrosion and oxidation |
Nickel-based Coatings |
400 - 700 |
Variable |
Corrosion and wear resistance |
Marine, oil and gas, chemical processing |
Copper, brass, marine metals |
Enhances bonding, protects against harsh environments |
Ceramic Coatings |
2500 - 4500 |
Over 1000 |
Chemical stability, heat resistance |
Aerospace, high-performance cutting |
Composites, hard superalloys |
High thermal barrier, reduces thermal stresses |
CVD Diamond Coating |
8000 - 10000 |
Up to 600 |
Extreme hardness, wear resistance |
Abrasive material cutting, advanced machining |
Graphite, ceramics, metals |
Superior abrasion resistance, suitable for very hard materials |
Recommended RPM’s for SMART CUT® Carbide Micro Drills
Recommended RMP’s based on material type, hardness, drill diameter, cutting speed (Vc), and chip load per tooth:
Material Type |
Hardness |
Drill Diameter (mm) |
Cutting Speed (Vc) m/min |
Chip Load Per Tooth (Microns) |
---|---|---|---|---|
Low Carbon Steel, Magnetic Soft Steel, Leaded Steels |
≤ 120 |
Ø < 1.0 |
50 |
80 |
Ø < 1.5 |
30 |
45 |
||
Ø < 2.0 |
35 |
52 |
||
Ø < 2.5 |
40 |
60 |
||
Ø < 3.0 |
46 |
68 |
||
Plain Carbon Steel Low, Medium Carbon |
< 250 |
Ø < 1.0 |
25 |
60 |
Ø < 1.5 |
25 |
40 |
||
Ø < 2.0 |
29 |
46 |
||
Ø < 2.5 |
33 |
53 |
||
Ø < 3.0 |
38 |
61 |
||
Structural Steel, Case Carburizing Steel |
< 200 |
Ø < 1.0 |
25 |
60 |
Ø < 1.5 |
25 |
40 |
||
Ø < 2.0 |
29 |
46 |
||
Ø < 2.5 |
33 |
53 |
||
Ø < 3.0 |
38 |
61 |
||
Alloyed Steel, Medium Carbon, Tool Steel, Wrought |
< 250 |
Ø < 1.0 |
20 |
50 |
Ø < 1.5 |
12 |
35 |
||
Ø < 2.0 |
14 |
40 |
||
Ø < 2.5 |
16 |
46 |
||
Ø < 3.0 |
18 |
53 |
||
Alloyed Steel, Hardened and Tempered Steel, Tool Steel |
> 250 ≤ 350 |
Ø < 1.0 |
15 |
35 |
Ø < 1.5 |
10 |
25 |
||
Ø < 2.0 |
12 |
29 |
||
Ø < 2.5 |
13 |
33 |
||
Ø < 3.0 |
15 |
38 |
||
Stainless Steel (Ferritic + Austenitic, Ferritic, Martensitic) |
< 300 |
Ø < 1.0 |
23 |
53 |
Ø < 1.5 |
5 |
25 |
||
Ø < 2.0 |
6 |
29 |
||
Ø < 2.5 |
7 |
33 |
||
Ø < 3.0 |
8 |
38 |
||
Nickel Alloys (Nickel, Unalloyed, Nickel Alloys Nimonic 75, Monel 400) |
< 150 |
Ø < 1.0 |
15 |
40 |
Ø < 1.5 |
10 |
15 |
||
Ø < 2.0 |
12 |
17 |
||
Ø < 2.5 |
13 |
20 |
||
Ø < 3.0 |
15 |
23 |
||
Titanium (Titanium Alloy, Cast) |
< 270 |
Ø < 1.0 |
25 |
56 |
Ø < 1.5 |
7 |
25 |
||
Ø < 2.0 |
8 |
29 |
||
Ø < 2.5 |
9 |
33 |
||
Ø < 3.0 |
11 |
38 |
||
Cast Iron (Soft Gray Cast, Ferritic) |
< 150 |
Ø < 1.0 |
30 |
80 |
Ø < 1.5 |
20 |
50 |
||
Ø < 2.0 |
23 |
58 |
||
Ø < 2.5 |
26 |
66 |
||
Ø < 3.0 |
30 |
76 |
||
Aluminum (Al Alloys, Si>5%) |
- |
Ø < 1.0 |
200 |
350 |
Ø < 1.5 |
150 |
300 |
||
Ø < 2.0 |
100 |
200 |
||
Ø < 2.5 |
45 |
60 |
||
Ø < 3.0 |
52 |
69 |
||
Copper - Brass Alloys (Copper Alloys, Wrought) |
- |
Ø < 1.0 |
100 |
225 |
Ø < 1.5 |
25 |
40 |
||
Ø < 2.0 |
29 |
46 |
||
Ø < 2.5 |
33 |
53 |
||
Ø < 3.0 |
38 |
61 |
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