DKS ServiceWorks
Internal Cooling Carbide Bit 3D/5D/8D/12D Non-Standard Diameter 12.0-32.0mm Crown Drill Twist Drill
The Internal Cooling Carbide Bit is designed as a Crown Drill for efficient and stable metal drilling. The integrated internal cooling system delivers coolant directly to the cutting zone, significantly improving chip evacuation and extending tool life.
Available in multiple depth options (3D, 5D, 8D, and 12D) with a non-standard diameter range from 12.0mm to 32.0mm. Both Crown Drill and Twist Drill structures are available to meet diverse machining requirements.










| Diameter (mm) | Product Number | Diameter (mm) | Product Number |
|---|---|---|---|
| D12.0-D12.4 | SMDT1200-SMDT1240 | D21.6-D22.8 | SMDT2160-SMDT2280 |
| D12.5-D12.9 | SMDT1250-SMDT1290 | D22.9-D23.8 | SMDT2290-SMDT2380 |
| D13.0-D13.4 | SMDT1300-SMDT1340 | D23.9-D24.8 | SMDT2390-SMDT2480 |
| D14.6-D15.5 | SMDT1460-SMDT1550 | D25.9-D26.8 | SMDT2590-SMDT2680 |
| D18.6-D19.5 | SMDT1860-SMDT1950 | D29.9-D30.9 | SMDT2990-SMDT3090 |
| D19.6-D20.5 | SMDT1960-SMDT2050 | D31.0-D32.0 | SMDT3100-SMDT3200 |



Our tools are expertly ground using world-class CNC and tool grinding machines. We specialize in producing high-precision, non-standard, and durable cutting tools for demanding sectors:


