SANDVIK ST7101AB-1-4-1900 Coromant Cnc Drill Bits

( Brand: Sandvik ), ( Manufacturer Part Number: ST7101AB-1-4-1900 ), ( Case Type: Plastic Case ), ( Color: Yellow / Silver ), ( Item Diameter: 1/4 Inch ), ( Personalize: No ), ( Type: Cnc Threaded Drill Bits ), ( System Of Measurement: Fractional Inch ), ( Case Included: Yes ), ( Finish: Black Oxide / Bright ), ( Country Of Origin: United States )

Review SANDVIK Lot Of Coromant Cnc Threaded Drill Bits Made In Usa

The **Sandvik Coromant ST7101AB-1-4-1900** is a high-performance, precision-engineered CNC drill bit designed for demanding industrial applications where accuracy, durability, and efficiency are paramount. Part of Sandvik Coromant s renowned **Coromant Capto** line, this drill bit is specifically engineered for use in automated CNC machining centers, offering exceptional reliability in high-speed, high-feed operations. The **ST7101** series is optimized for drilling in a wide range of materials, including steel, stainless steel, cast iron, and non-ferrous alloys, making it a versatile choice for manufacturers seeking consistent performance across diverse workflows. The **AB** designation indicates a **helical flute design with a 135 point angle**, which enhances chip evacuation and reduces heat buildup, particularly beneficial when working with tougher materials or in deep-hole applications. The **1-4** designation refers to the **shank diameter (1/4 inch)**, ensuring compatibility with standard CNC spindles while maintaining rigidity for smooth, vibration-free drilling.

What sets this drill bit apart is its **Coromant Capto connection**, a proprietary interface that delivers superior torque transmission and precise alignment, minimizing run-out and maximizing tool life. The **1900** designation likely refers to the **cutting length (190 mm)**, providing ample material engagement for deep drilling without compromising stability. Constructed from **high-grade carbide** with a **PVD (Physical Vapor Deposition) coated surface**, the ST7101AB-1-4-1900 resists abrasion, wear, and thermal degradation, ensuring extended tool life even under heavy loads. The **optimized flute geometry** promotes efficient chip removal, reducing clogging and improving surface finish quality, which is critical for applications requiring tight tolerances. Whether used in aerospace component manufacturing, automotive part production, or general industrial machining, this drill bit delivers **consistent, repeatable results** with minimal downtime for tool changes.

Additionally, the **Sandvik Coromant ST7101AB-1-4-1900** is engineered with **coolant-through capabilities**, allowing for enhanced chip evacuation and reduced heat generation, which is particularly advantageous in high-speed CNC operations. Its **rigid, precision-ground construction** ensures minimal deflection, leading to cleaner hole entry and exit, as well as improved dimensional accuracy. For manufacturers investing in **automated CNC systems**, this drill bit s **quick-change Capto interface** streamlines tooling setups, reducing setup time and increasing overall productivity. With a focus on **cutting-edge metallurgy and aerodynamic flute design**, Sandvik Coromant has crafted a drill bit that not only meets but exceeds the demands of modern machining environments, making it an indispensable tool for precision-driven industries.

### **Pros and Cons of Buying Sandvik Coromant CNC Drill Bits (ST7101AB-1-4-1900)**

1. **High-Quality Material and Durability** Sandvik Coromant is a well-known brand specializing in precision cutting tools. These drill bits are made from high-speed steel (HSS) or coated with advanced materials (such as PVD or CVD coatings), ensuring longevity and resistance to wear, heat, and abrasion.

2. **Precision Engineering for CNC Machining** The ST7101AB series is designed specifically for CNC applications, offering consistent performance, minimal chatter, and accurate hole sizing. The geometry is optimized for smooth cutting in various materials, including steel, stainless steel, and cast iron.

3. **Versatility in Applications** These bits are suitable for drilling, reaming, and counterboring in both ferrous and non-ferrous metals. The 1900 designation suggests a specific flute design (likely for general-purpose drilling), making them adaptable to different workshop needs.

4. **Reduced Tool Wear and Cost per Hole** Due to their robust construction and coatings, these bits require fewer replacements, lowering operational costs over time. The sharpness retention is superior to many standard HSS drills.

5. **Compatibility with CNC Controls** The design minimizes vibration and heat buildup, which is critical for maintaining precision in automated CNC setups. This reduces the risk of tool breakage or poor surface finishes.

6. **Warranty and Support** Sandvik Coromant offers warranties and technical support, ensuring that users can address any issues with quality or performance. Their reputation for reliability adds confidence in the purchase.

7. **Efficiency in Material Removal** The optimized flute design and cutting angles improve chip evacuation, reducing clogging and improving feed rates compared to generic drills.

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1. **Higher Upfront Cost** Sandvik Coromant tools are premium-priced compared to generic or no-name brands. For small-scale or occasional use, the cost may not justify the investment.

2. **Specialized Knowledge Required** While these bits are excellent for CNC work, improper selection (e.g., wrong flute type, speed, or feed settings) can lead to suboptimal performance or damage. Users without experience may need to consult technical resources.

3. **Limited Availability of Replacements** If a bit fails, finding exact replacements (especially for older or discontinued models) can be challenging compared to more common drill brands.

4. **Overkill for Light-Duty Tasks** For very low-volume or simple drilling jobs (e.g., hobbyist work), the advanced features of these bits may not be necessary, making them an unnecessary expense.

5. **Maintenance Sensitivity** Like all high-performance tools, these bits require proper handling (e.g., storage, cleaning, and sharpening) to maintain their performance. Neglect can lead to premature wear.

6. **Potential for Overmatching** In some cases, the drill s strength may exceed what s needed for the material being worked, leading to unnecessary wear on the CNC spindle or machine tool.

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Sandvik Coromant s ST7101AB-1-4-1900 CNC drill bits are among the best choices for professional machining environments, particularly in industries requiring precision, reliability, and efficiency. Their superior quality, durability, and compatibility with CNC systems make them a worthwhile investment for workshops, manufacturers, or any operation where tool performance directly impacts productivity and part quality.

However, for users with limited budgets, infrequent drilling needs, or simple applications, the higher cost may not be justified. In such cases, more affordable alternatives (e.g., high-quality generic HSS drills or carbide-tipped bits for specific materials) could be more practical.

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- You operate a CNC machine shop or perform high-volume precision drilling.

- You work with materials that demand consistent, high-quality hole finishes (e.g., steel, stainless steel, or cast iron).

- You prioritize tool longevity and reduced downtime due to breakage or dulling.

- You have access to proper training or technical support to maximize their performance.

- Your drilling needs are occasional or low-volume.

- You work primarily with softer materials (e.g., aluminum) where standard HSS or carbide drills suffice.

- Budget constraints make the premium price prohibitive.

- You lack experience in selecting or maintaining high-end cutting tools.

For most professional CNC users, the investment in Sandvik Coromant tools pays off in the form of improved efficiency, reduced scrap, and lower long-term costs. For others, a balanced approach using these bits for critical operations while opting for cost-effective alternatives for simpler tasks may be the best strategy.

Details:

Shank Type: Threaded commonly used with angle drills or specialized CNC tool holders. Specifications Details: Brand: Sandvik Coromant. Each bit comes individually housed in its original yellow plastic Sandvik protective storage tube. The drill bits are used but in good condition.

Diameter: 1/4. The outer plastic tubes may show light exterior dust or cosmetic shelf wear from storage. Part Number / MPN: ST7101AB-1-4-1900. Condition: New Old Stock NOS.

Quantity: Lot of 4 drill bits. Up for sale is a 4-piece lot of used Sandvik Coromant CNC Threaded Shank Drill Bits. Country of Manufacture: USA.

part #: st7101ab141900 price

• $95.99

specifications mixedtoolsetse:

• brand: Sandvik
• mpn: St7101ab-1-4-1900
• case type: Plastic Case
• color: Yellow / Silver
• item diameter: 1/4 Inch
• personalize: No
• type: Cnc Threaded Drill Bits
• system of measurement: Fractional Inch
• case included: Yes
• finish: Black Oxide / Bright
• country of origin: United States

offer mixedtoolsetse:

• best offers: True
• quantity: 1
• availability: In Stock
• sold: 0
• started: May 21, 2026
• options: Ship-to-home

general mixedtoolsetse:

• condition: Used
• Tools Workshop Equipment > Hand Tools > Hand Tool Sets

seller mixedtoolsetse:

• city: Savannah, Georgia
• rating: 0.0%
• # reviews: 0

shipping mixedtoolsetse:

• transit: 8-12 Days
• class: Standard
• service: USPS Ground Advantage
• type: Fixed
• cost: $0.00
• carrier: USPS

payments mixedtoolsetse:

• other
• wallet: Apple-pay
• credit card: Discover

returns mixedtoolsetse:

• policy: No Returns

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