Product Specifications:
This high‑productivity 28.5mm U drill is optimized for aggressive feed rates (0.08‑0.10 mm/r) in carbon steel and alloy steel, significantly reducing cycle time in medium‑diameter holes. With a 3D depth (85.5mm) and C32 shank, it excels on CNC machining centers and boring mills. The recommended speed range of 1500‑1700 RPM keeps cutting forces moderate while achieving fast penetration.
SPMG090408 inserts feature a robust geometry for high‑feed applications, and the double helix coolant system prevents chip clogging even at elevated feed rates. Typical uses include automotive engine brackets, suspension arms, hydraulic cylinder mounts, and general engineering components. This drill is particularly effective on older machines with limited spindle torque because the lower RPM reduces power demand. For high‑volume production of 28.5mm holes, this U drill can replace two‑step drilling (pilot + finish) and lower your cost per hole. Optional insert grades for stainless steel and titanium are available. Custom lengths and shank configurations can be ordered for special applications.
Standard sizes shown above. Custom diameters (12–60 mm), drilling depths (2D‑5D), and shank types available. Request non‑standard sizes →
| Name: | Indexable U Drill | Material: | Solid Carbide/High Carbon Steel/Tool Steel |
| Flute: | 1-6 | HRC: | HRC45°,HRC50°,HRC55° |
| Insert: | SPMG SPGT | Length: | 2D 3D 4D 5D |
| Customization | OEM/ODM | Precision: | Finishing, Semi-Finishing, Roughing |
| Coolant | Yes | Package: | Inner Plastic Box, Carton Outside |
| Process Equipment : | CNC Tooling | Suitable For: | CNC Lathe Machine |
✅ Inserts can be customized separately.
We offer SPMG, WCMX, and other insert types with tailored coatings (TiN, TiAlN, AlCrN) and carbide grades for your specific material. Request non‑standard inserts →
