After years of research, development, and real-world testing, Sandvik Coromant introduces the first indexable drill capable of reaching depths up to 7×DC—without the need for pilot drilling. The result? Significantly reduced cycle times and a lower cost per hole. Featuring an innovative drill body and insert design, CoroDrill® DS20 delivers unmatched rigidity, optimized chip evacuation, and light cutting action. Designed for reliable and predictable performance, it excels in deep-hole applications from 4×DC to 7×DC with superior penetration rates. For even greater productivity, pair CoroDrill® DS20 with the Modular Drilling Interface (MDI)—a stable, high-precision solution that streamlines tool setup and reduces inventory complexity.
Your Drilling Partner from Start to Finish: The Steiner Metalworking team is here to help you specify the right drill and insert combinations for your application. From initial planning through implementation and ongoing support, we’ll work with you to improve efficiency, boost throughput, and reduce production costs.
Strong and Fatigue-Resistant Drill Body
Each drill body size is individually optimized and offers unprecedented rigidity to ensure high process security, repeatability, consistent quality, and good run-out accuracy. Twisted coolant holes maintain drill body rigidity, and variable chip flutes are optimally shaped for safe chip evacuation.
Optimized Insert Design
The robust insert seats have three support contact surfaces for less insert movement. The inserts are strong and have a bulk strength that provides extra toughness, resulting in unmatched insert tool life. The ground peripheral insert allows for closer hole tolerance, predictability, and consistent performance.
For Holes Up to 7xDC
This 7×DC insert drill with innovative drill body and insert designs enables cost-effective and reliable drilling of deep holes with less demanding hole tolerances. No pilot drilling is needed, which saves both time and money.
Benefits & Features
- Secure and reliable cutting with high productivity and consistent hole diameters
- Versatile design with optimized chip control and evacuation across a wide cutting range
- Broad selection of geometries—ranging from general-purpose to application-optimized
- Low cost per hole, reducing overall tooling expenses
- Lower operating sound levels contribute to a better shop environment
- Individually engineered chip flutes with a square profile for added rigidity and improved chip evacuation
- Four true cutting edges on both the peripheral and central inserts extend tool life and efficiency
MDI (Modular Drilling Interface)
MDI is a stable, high-precision modular interface designed for drilling applications. Its coupling system allows a single adapter size to support multiple drill diameters—reducing tool inventory and overall tooling costs.
- Quick and Accurate Setup: Four locating pins enable precise cutting edge positioning and reliable torque transmission for fast, secure assembly.
- Double Centering for Accuracy: The differing diameters of the shank and adapter allow for double centering, resulting in excellent fitting accuracy and consistent runout.
- Enhanced Stability: A robust flange and surface contact between the drill body and nut ensures exceptional repeatability, improved process stability, and optimized performance.
You may also fill out the form below for additional details.