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SMART CUT® series high precision tolerance and accuracy non core formation sintered (metal bond) diamond drills. Each Diamond Core Drill steel body is machined from a single piece of steel on high precision CNC machine. This provides Very Precision Tolerances, Accuracy, & Consistency. Diamond Height (depth) of 10mm, insure that these drills provide highest possible diamond drill life in industry
standard drilling depth: 1.5″ with 5/8-11″ female thread. We can produce any diameter, drilling depth, and any mounting type such as 5/8-11″, 3/4-16″, 5/8-18″, 1-14″, 1/2″ gas, jacobs, matthews, or any straight shank per customer specification. Wide variety of bond hardness’s, diamond mesh sizes and concentrations are available to accommodate different material requirements. We will work with you to determine your needs, and recommend the right solution for your specific material/application. Lead time is typically 10 to 14 work days. Expedited service/lead time is available upon request. REQUEST QUOTE TODAY!
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Ferrous & Non-Ferrous Metals:
The 120DE SMART CUT Series Thin Wall Diamond Core Drill is a high-performance drilling tool designed for precision drilling in hard materials. It utilizes sintered (metal bond) diamond technology to provide exceptional durability and efficiency.
These diamond core drills are versatile and can be used on a wide range of materials, including but not limited to composites, glass, concrete, sandstone/flagstone, natural stone, optical materials, precious and semiprecious stones, advanced/technical ceramics, ultra-hard and brittle materials, and many others. They are suitable for both industrial and hobbyist applications.
These core drills are available in diameters ranging from ¾” (19.05mm) to 4.75” (120.65mm).
They feature a 5/8-11″ female thread for easy attachment to drilling equipment.
The drilling depth is 2.25″ (75mm).
The overall length of these core drills is 2.5”.
Yes, these core drills must be used with coolant, which can include water, mineral oil, and water-soluble coolant, to ensure optimal performance and extend their lifespan.
Yes, these core drills are compatible with most popular drilling equipment, making them suitable for a wide range of applications and industries.
To maximize the lifespan of these core drills, it is essential to use them with coolant as recommended. Additionally, proper maintenance and following the manufacturer’s guidelines for usage will contribute to their longevity.
Yes, these core drills are suitable for both professional contractors and serious hobby enthusiasts or craftsmen. They are versatile and can be used in various applications.
Yes, these core drills are specifically designed to handle ultra-hard materials that might pose challenges to other types of drills. They excel in drilling such materials efficiently.
The tolerance on the outside diameter of these core drills is .0085″ (0.21mm), ensuring precise and consistent hole sizes.
Yes, these core drills are suitable for drilling materials ranging from 8.5 to 4.5 on Mohs scale, making them versatile for a wide range of applications, from hard ceramics to glass.
When using these core drills, it’s essential to follow safety guidelines, including wearing appropriate personal protective equipment (PPE), using coolant as recommended, and ensuring proper machine setup and operation to minimize risks associated with drilling.
Sintered (metal bond) diamond core drills are known for their long life and consistency, but eventually, they may wear out. They can be re-tipped, however its not usually worthwhile as it would cost more then a new drill.
While the use of coolant helps reduce dust generation, drilling may still produce some dust. It’s essential to use proper dust extraction equipment and follow safety guidelines to minimize dust exposure.
These core drills are primarily designed for wet drilling applications, as they are recommended to be used with coolant. Dry drilling without coolant may lead to reduced performance and increased wear on the drill.
Maintenance requirements typically include keeping the core drills clean and well-lubricated, checking for any signs of wear or damage, dressing and follow our usage recommendations
In addition to using coolant, you may need accessories such as a suitable drillingmachine, or guide for precise drilling.
These core drills can be used for both horizontal and vertical drilling applications, offering versatility in various drilling orientations.
Yes, these core drills are suitable for a wide range of projects, from professional industrial applications to DIY or home improvement projects.
To maintain their performance and longevity, it’s recommended to store these core drills in a clean, dry, and cool environment, preferably in their original packaging or protective cases.
The expected lifespan can vary depending on factors such as material hardness, usage frequency, and maintenance practices. However, sintered (metal bond) diamond core drills are known for their durability and long life compared to other drilling methods.
While these core drills are primarily designed for creating round holes, they can be used as a starting point for creating larger or differently shaped holes with additional tools or machining processes.
When handling coolant, it’s essential to follow safety guidelines and use appropriate personal protective equipment (PPE) to prevent skin and eye contact. Ensure proper containment and disposal of used coolant according to local regulations.
Core drills can produce noise during operation, and it’s advisable to use hearing protection when working with them. Additionally, working in a controlled and insulated environment can help reduce noise levels.
These core drills are primarily designed for wet drilling applications using coolant. While dry cutting may be possible, it is generally recommended to use them with the recommended coolant for optimal performance and longevity.
Image | Name | COMPATIBILITY WITH DRILL SERIES | Price | Quantity | Add to cart |
|---|---|---|---|---|---|
 | Recommended for use in Diamond Tools 150 Grit Size (mesh… | $15.39 | Max: Min: 1 Step: 1 | ||
 | Recommended for coarser grits found in segment wheels, core drills… | $15.99 | Max: Min: 1 Step: 1 | ||
 | 5/8″-11″ thread. Fits into drill press chuck. Shank adapter threads… | $22.46 | Max: Min: 1 Step: 1 | ||
| 5/8″-11″ thread. Fits into drill press chuck. Shank adapter threads… | $26.72 | Max: Min: 1 Step: 1 | ||
 | SMART CUT® General Materials Formula Synthetic Water Soluble Coolant | $34.81 | Max: Min: 1 Step: 1 | ||
 | Recommended for use in Diamond Tools 150 Grit Size (mesh… | $39.47 | Max: Min: 1 Step: 1 | ||
 | Recommended for coarser grits found in segment wheels, core drills… | $39.47 | Max: Min: 1 Step: 1 | ||
 | SMART CUT® General Materials Formula Synthetic Water Soluble Coolant | $99.81 | Max: Min: 1 Step: 1 | ||
 | 105DE, 135DB, 115DM, 125DM, 130DMN, 140DM (up to 1-5/8″ OD) | $154.87 | Max: Min: 1 Step: 1 | ||
 | 105DE, 135DB, 115DM, 125DM, 130DMN, 140DM (up to 1-5/8″ OD) | $154.87 | Max: Min: 1 Step: 1 | ||
 |
105DE, 135DB, 115DM, 125DM, 130DMN, 140DM (up to 1-5/8″ OD) | $235.00 | Max: Min: 1 Step: 1 | ||
 | SMART CUT® General Materials Formula Synthetic Water Soluble Coolant | $317.41 | Max: Min: 1 Step: 1 | ||
 | SMART CUT® General Materials Formula Synthetic Water Soluble Coolant | $1,745.00 | Max: Min: 1 Step: 1 |
standard drilling depth: 1.5″ with 5/8-11″ female thread. We can produce any diameter, drilling depth, and any mounting type such as 5/8-11″, 3/4-16″, 5/8-18″, 1-14″, 1/2″ gas, jacobs, matthews, or any straight shank per customer specification. Wide variety of bond hardness’s, diamond mesh sizes and concentrations are available to accommodate different material requirements. We will work with you to determine your needs, and recommend the right solution for your specific material/application. Lead time is typically 10 to 14 work days. Expedited service/lead time is available upon request. REQUEST QUOTE TODAY!
Diamond Bottoming Drills, also known as Flat Bottom Tip Drills, Bottoming Drills, Disintegrating Diamond Core Drills, or Diamond Offset Style Core Drills, utilize a sintered (metal bond) to offer unparalleled precision in drilling. These specialized tools are essential for creating blind holes in hard materials ranging from sapphire and quartz to slate, without leaving a core behind.
Designed for creating flat-bottomed holes or features in a variety of ultra-hard and brittle materials. Unlike standard drills that produce conical or pointed holes, bottoming drills have a flat cutting surface at the tip, allowing for the creation of clean, even bottoms in drilled holes. This design makes them ideal for applications where a precise, flat-bottom finish is required, such as in countersinking flat surfaces, milling pockets, or producing specific hole geometries in advanced materials.
Image | SKU | Outside Diameter | Diamond Height | Drilling Depth | Get Quote |
|---|---|---|---|---|---|
 | 3mm (.118") | 7mm (.276") | 1.5" (38.1mm) | ||
| 3.2mm (.125") | 7mm (.276") | 1.5" (38.1mm) | ||
| 3.5mm (.138") | 7mm (.276") | 1.5" (38.1mm) | ||
| 4mm (.157") | 7mm (.276") | 1.5" (38.1mm) | ||
| 4.5mm (.177") | 7mm (.276") | 1.5" (38.1mm) | ||
| 4.7mm (.187") | 7mm (.276") | 1.5" (38.1mm) | ||
| 5mm (.197") | 7mm (.276") | 1.5" (38.1mm) | ||
| 5.5mm (.216") | 7mm (.276") | 1.5" (38.1mm) | ||
| 6mm (.236") | 8mm (.314) | 1.5" (38.1mm) | ||
| 6.4mm (.250") | 10mm (.393) | 1.5" (38.1mm) | ||
| 7mm (.276") | 10mm (.393) | 1.5" (38.1mm) | ||
| 7.5mm (.295") | 10mm (.393) | 1.5" (38.1mm) | ||
| 8mm (.314") | 10mm (.393) | 1.5" (38.1mm) | ||
| 8.5mm (.334") | 10mm (.393) | 1.5" (38.1mm) | ||
| 9mm (.354") | 10mm (.393) | 1.5" (38.1mm) | ||
| 9.5mm (.374") | 10mm (.393) | 1.5" (38.1mm) | ||
| 10mm (.393") | 10mm (.393) | 1.5" (38.1mm) | ||
| 10.5mm (.413") | 10mm (.393) | 1.5" (38.1mm) | ||
| 11mm (.433") | 10mm (.393) | 1.5" (38.1mm) | ||
| 11.5mm (.452") | 10mm (.393) | 1.5" (38.1mm) | ||
| 12mm (.472") | 10mm (.393) | 1.5" (38.1mm) | ||
| 12.7mm (.500") | 10mm (.393) | 1.5" (38.1mm) | ||
| 13mm (.512") | 10mm (.393) | 1.5" (38.1mm) | ||
| 13.5mm (.531") | 10mm (.393) | 1.5" (38.1mm) | ||
| 14mm (.551") | 10mm (.393) | 1.5" (38.1mm) | ||
| 14.5mm (.570") | 10mm (.393) | 1.5" (38.1mm) | ||
| 15mm (.590") | 10mm (.393) | 1.5" (38.1mm) | ||
| 15.5mm (.610") | 10mm (.393) | 1.5" (38.1mm) | ||
| 16mm (.630") | 10mm (.393) | 1.5" (38.1mm) | ||
| 16.5mm (.650") | 10mm (.393) | 1.5" (38.1mm) | ||
| 17mm (.670") | 10mm (.393) | 1.5" (38.1mm) | ||
| 17.5mm (.689") | 10mm (.393) | 1.5" (38.1mm) | ||
| 18mm (.709") | 10mm (.393) | 1.5" (38.1mm) | ||
| 18.5mm (.728") | 10mm (.393) | 1.5" (38.1mm) | ||
| 19mm (.748") | 10mm (.393) | 1.5" (38.1mm) | ||
| 19.5mm (.767") | 10mm (.393) | 1.5" (38.1mm) | ||
| 20mm (.787") | 10mm (.393) | 1.5" (38.1mm) | ||
| 20.5mm (.807") | 10mm (.393) | 1.5" (38.1mm) | ||
| 21mm (.826") | 10mm (.393) | 1.5" (38.1mm) | ||
| 21.5mm (.846") | 10mm (.393) | 1.5" (38.1mm) | ||
| 22mm (.826") | 10mm (.393) | 1.5" (38.1mm) | ||
| 22.5mm (.885") | 10mm (.393) | 1.5" (38.1mm) | ||
| 23mm (.905") | 10mm (.393) | 1.5" (38.1mm) | ||
| 23.5mm (.925") | 10mm (.393) | 1.5" (38.1mm) | ||
| 24mm (.944") | 10mm (.393) | 1.5" (38.1mm) | ||
| 24.5mm (.964") | 10mm (.393) | 1.5" (38.1mm) | ||
| 25mm (.984") | 10mm (.393) | 1.5" (38.1mm) | ||
| 25.4mm (1.0") | 10mm (.393) | 1.5" (38.1mm) | ||
| 26mm (1.023") | 10mm (.393) | 1.5" (38.1mm) | ||
| 26.5mm (1.043") | 10mm (.393) | 1.5" (38.1mm) | ||
| 27mm (1.062") | 10mm (.393) | 1.5" (38.1mm) | ||
| 27.5mm (1.082") | 10mm (.393) | 1.5" (38.1mm) | ||
| 28mm (1.102") | 10mm (.393) | 1.5" (38.1mm) | ||
| 28.5mm (1.122") | 10mm (.393) | 1.5" (38.1mm) | ||
| 29.0mm (1.141") | 10mm (.393) | 1.5" (38.1mm) | ||
| 29.5mm (1.161") | 10mm (.393) | 1.5" (38.1mm) | ||
| 30mm (1.181") | 10mm (.393) | 1.5" (38.1mm) | ||
| 30.5mm (1.200") | 10mm (.393) | 1.5" (38.1mm) | ||
| 31mm (1.220") | 10mm (.393) | 1.5" (38.1mm) | ||
| 31.5mm (1.240") | 10mm (.393) | 1.5" (38.1mm) | ||
| 32mm (1.259") | 10mm (.393) | 1.5" (38.1mm) | ||
| 32.5mm (1.279") | 10mm (.393) | 1.5" (38.1mm) | ||
| 33mm (1.299") | 10mm (.393) | 1.5" (38.1mm) | ||
| 33.5mm (1.318") | 10mm (.393) | 1.5" (38.1mm) | ||
| 34mm (1.338") | 10mm (.393) | 1.5" (38.1mm) | ||
| 34.5mm (1.358") | 10mm (.393) | 1.5" (38.1mm) | ||
| 35mm (1.337") | 10mm (.393) | 1.5" (38.1mm) | ||
| 36mm (1.417") | 10mm (.393) | 1.5" (38.1mm) | ||
| 36.5mm (1.437") | 10mm (.393) | 1.5" (38.1mm) | ||
| 37mm (1.456") | 10mm (.393) | 1.5" (38.1mm) | ||
| 37.5mm (1.476") | 10mm (.393) | 1.5" (38.1mm) | ||
| 38mm (1.496") | 10mm (.393) | 1.5" (38.1mm) | ||
| 38.1mm (1.50") | 10mm (.393) | 1.5" (38.1mm) | ||
| 38.5mm (1.515") | 10mm (.393) | 1.5" (38.1mm) | ||
| 39mm (1.535") | 10mm (.393) | 1.5" (38.1mm) |
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These drills uniquely function both as a drill and a grinding disc, allowing them to not only create holes but also to grind the bottom and interior sides of these holes to a flat and smooth finish. This dual functionality is especially critical for drilling blind holes larger than 3/8" OD (outside diameter), which is a task beyond the capabilities of most standard drills.
Designed to deliver coolant directly through the center via a slot on the side of the diamond section or through a specifically designed hole, these drills ensure continuous lubrication and cooling during operations. This feature helps in maintaining the integrity of both the drill and the material being worked on, minimizing heat-induced damage and wear.
The grinding mechanism of these drills ensures high-quality surface finishes within the drilled holes, reducing the necessity for further finishing processes. This efficiency not only saves time but also enhances the overall quality of the workpiece.
Efficient Material Removal: Allows for quick removal of material without core retention.
Enhanced Precision: Ideal for creating flat-bottom holes and precise endpoints.
Versatile Applications: Suitable for various industries including electronics and engineering.
Reduced Waste: Minimizes material wastage, crucial when working with valuable substrates.
Adaptable to Various Materials: Effective on a wide range of materials from metals to ceramics.
If you are only drilling partially through a material, using a hollow diamond core drill might not be the best option. This type of drill can trap the core—the cylinder of material removed during drilling—inside the hollow drill bit if you don’t drill all the way through. Removing a trapped core can be difficult and may even damage the drill bit.
In these cases, a non-core formation diamond drill (solid drill) is usually a better choice for several reasons. Firstly, it grinds away the entire volume of the hole without producing a cylindrical core, so there's no worry about material getting trapped inside the drill. Secondly, a solid drill offers more precise control over the depth of drilling, particularly when used with a drill press or other machinery equipped with depth stops or measurements. Lastly, solid drills tend to produce a smoother finish in the hole, which is beneficial if the partial hole will be visible or used in a precision application.
However, if there's a specific need to extract a partial core from a material, a hollow core drill would be used, but it would require a method for core removal from the bit afterward. This scenario is less common but does occur in some research and specialized material analysis applications.
In addition to the standard SMART CUT series Diamond Bottoming/Non Core Formation typically available from stock. We can produce large variety of custom Diamond Bottoming/Non Core Formation and tools per your specification or drawing
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25205 & 25201 Avenue Tibbits Valencia CA 91355 USA
Phone : (661) 257-2288
FAX : (661) 257 -3833
lel@ukam.com
UKAM Industrial Superhard Tools is a U.S. High Technology, Specialty Diamond Tool & Equipment manufacturer. We specialize in producing ultra thin, high precision cutting blades, precision cutting machines diamond drills, diamond micro tools, standard & custom advanced industrial diamond tools and consumables.
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