CoroDrill® DS20
4–7 × DC insert drill offering reliability, predictability and outstanding penetration rates.
Strong and fatigue-resistant drill body
Each drill body size is individually optimized and offers unprecedented stiffness 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 7×DC
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.
Application area
 |  |  |
| Conventional drilling | Inclined exits | Inclined surfaces |
 |  | |
| Cross holes | Convex/concave surfaces |
- Diameter range and depth capacity:
15–45 mm (0.625–1.75 inches), 4–7×DC
46–65 mm (1.875–2.50 inches), 4–5×DC - Hole tolerance:
4–5 × DC: H12–H13
6–7 × DC: -0.1/+0.5 mm (-0.004/+0.020 inches) - Capable of both non-rotating and rotating set-ups
- Can be used for drilling with radial offset, boring and deburring
Product range
Cylindrical shank with flat (ISO 9766)
4–7×DC: Diameter 15–45 mm (0.625–1.75 inches)
4–5×DC: Diameter 46–65 mm (1.875–2.50 inches)
MDI shank
4, 7×DC: Diameter 15–45 mm (0.625–1.75 inches)
4×DC: Diameter 46–59 mm (1.875–2.25 inches)
MDI adapter
Coromant Capto®: C3, C4, C5, C6 and C8
HSK-T: 63 and 100
Tailor Made® drills
Can't find what you need in our extensive standard program? You can further optimize your exact specification using Tailor Made®.
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Central insert
Grade: GC1344, GC1144, H13A
Geometries: -L5, -M7
Peripheral insert
Grade: GC4334, GC2044, GC4344
GC4324, H13A
Geometries: -S5W, -L5W, -L6W,
-M7W, -H5W
CoroDrill® DS20 catalog
Download the catalog for more information about the CoroDrill® DS20, a complete standard assortment list and cutting data recommendations.
Download catalog
Hole tolerance
Drill depth 4–5 × DC
| Drill diameter, mm (inches) | Hole tolerance, mm (inches) |
| 15.00–18.00 (0.591–0.709) | 0/+0.27 (0/+0.011) |
| 18.01–30.00 (0.709–1.18) | 0/+0.33 (0/+0.013) |
| 30.01–65.00 (1.18–2.56) | 0/+0.39 (0/+0.015) |
Drill depth 6–7 × DC
| Drill diameter, mm (inches) | Hole tolerance, mm (inches) |
| 15.00–18.00 (0.591–0.709) | -0.1/+0.5 (-0.004/+0.020) |
| 18.01–30.00 (0.709–1.18) | -0.1/+0.5 (-0.004/+0.020) |
| 30.01–65.00 (1.18–2.56) | -0.1/+0.5 (-0.004/+0.020) |
Dimension control
Use an eccentric sleeve to get close hole tolerances or to change the tool dimension. Note! Not recommended for 6–7 × DC.
MDI (Modular Drilling Interface)
MDI is a stable and high-precision drilling interface. The modular coupling between drill and adapter allows you to use one size for several drill diameters, leading to less tool inventory and lower costs.
Four locating pins allow for high torque transmission and provide an exact cutting edge position and quick and easy set-up.
Two different diameters on the shank and adapter mean double centering is achievable with high fitting accuracy. Increased stability, good run-out precision and optimal repeatability can be achieved thanks to the flange and surface contact between the drill body and nut.
Machine side interface
Coromant Capto®
| Size | MDI size |
| C3 | 20 |
| C4 | 20, 25, 32 |
| C5 | 20, 25, 32, 40 |
| C6 | 20, 25, 32, 40, 50 |
| C8 | 25, 32, 40, 50 |
HSK-T
| Size | MDI Size |
| 63 | 20, 25, 32, 40 |
| 100 | 25, 32, 40, 50 |
| MDI size | Drill dimension, mm (inches) | Keys |
| 20 | 15.00–17.43 (0.591–0.686) | 5680 103-05 |
| 25 | 17.44–25.99 (0.687–1.023) | 5680 103-06 |
| 32 | 26.00–31.99 (1.024–1.259) | 5680 103-07 |
| 40 | 32.00–43.99 (1.260–1.732) | 5680 103-08 |
| 50 | 44.00–59.00 (1.733–2.323) | 5680 103-09 |
Torque wrench recommendation: ER-TK-02M
(key interface 16)
Highlights
Opening up new possibilities
A customer in Mexico found a new way of machining components using the CoroDrill® DS20. Watch the film and find out how!
Reliable and predictable drilling
4–7 × DC insert drill with innovative drill body and insert designs allows for reliable and predictable drilling.
Drilling inserts and grades
Find the right drilling insert grade for your workpiece material, hole diameter, hole depth and required hole quality here.
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Sandvik Coromant US - Mebane, NC
+1-800-Sandvik