Case study
Drills
20 mm Forming Drills: Precision Built for Production Efficiency

Forming drills are designed for more than “drilling”: they enlarge and shape the hole so the geometry matches the print with higher repeatability. For a 20 mm forming drill, the manufacturing challenge is balancing cutting load with stable guidance so the tool keeps the forming shape consistent over production time.
| Technical Specifications | |
|---|---|
| Feature | Specification |
| Tool type | Three-point / centering-forming profile |
| Diameter | 20 mm (customizable to your drawing) |
| Material | Solid carbide (tungsten carbide) |
| Coolant | Solid or internal coolant-through versions |
| Target tolerances | Aligned to m7 / h6 / h8 class requirements |
| Application | Alloy steel, stainless, cast iron, aluminum, and production work-holding systems |
Why the 20 mm scale matters: as diameter grows, even small deviations in guidance and cutting-edge geometry are magnified into hole errors and faster wear. This forming drill case highlights our approach—tight grinding control, profile verification, and inspection criteria aligned to your production acceptance.
If your print requires controlled hole forming at 20 mm (or a step/flat feature near the entrance/shoulder), send the drawing, material + hardness, required tolerance class, depth, and available coolant pressure. We will propose the right solid or coolant-through forming drill configuration for your programme.
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Send drawings, material, and target cycle time. Our application team typically responds within one business day with feasibility feedback and next steps.