Application guide
Solid carbide deep-hole drilling
Choose a deep-hole drill by matching the hole diameter and depth to the machine setup. DELEVEL lists RDS deep-hole drills from 8xD to 50xD, all through-coolant; check the dimensions for the selected series.
Start with the hole, then choose the series
01
Describe the feature
Specify the finished diameter and hole depth. Include whether the hole is blind or through, and show any cross-holes, angled entries or interrupted exits on the drawing.
02
Check the listed dimensions
Match the diameter to a specific series and size row. Check flute length, shank and overall length together; flute length alone does not establish the usable drilling depth.
03
Review the setup
Provide the workpiece material, holder, available reach and coolant arrangement. Pilot-hole preparation and the drilling cycle need to be agreed for the selected tool and application.
Standard series for longer holes
The catalogue lists RDS deep-hole drills from 8xD to 50xD. Use the full size rows to match a particular diameter and tool length.
| Depth | Diameter | Shank D | Overall length |
|---|---|---|---|
| 8xD | Φ3–20 | 6–20 | 80–244 |
| 12xD | Φ3–20 | 6–20 | 92–310 |
| 16xD | Φ3–16 | 6–16 | 100–340 |
| 20xD | Φ3–16 | 6–16 | 110–404 |
| 25xD | Φ3–12 | 6–12 | 125–373 |
| 30xD | Φ3–12 | 6–12 | 135–430 |
| 40xD | Φ3–11 | 6–12 | 180–528 |
| 50xD | Φ3–9 | 6–10 | 215–525 |
A range does not imply that every intermediate size is listed. Check the diameter bands in the RDS deep-hole drill tables, catalog chapter 01 (PDF).
All RDS deep-hole drills in the catalogue are through-coolant. Include your coolant requirements in the enquiry so the tool configuration can be confirmed.
Information to send with your enquiry
- Workpiece material and hardness, plus the hole drawing.
- Finished hole diameter, depth, blind or through condition, and entry or exit details.
- Dimensional tolerance, position or straightness requirements, and surface finish.
- Machine, spindle interface, holder, available reach and coolant equipment.
- Batch quantity and any current tool or process constraints.
For small-diameter work, see the micro drill series. Check the diameter and depth combination within the selected family.
Discuss the hole before specifying the tool
Send the drawing and machine conditions so the series, dimensions and configuration can be reviewed together.