Product Specifications:
This 25.5mm U drill is a versatile workhorse for both CNC lathes and machining centers. Running at 1700‑1800 RPM with a feed of 0.06‑0.08 mm/r, it delivers reliable performance in carbon steel, alloy steel, and stainless steel (with appropriate insert grade). The 3D depth (76.5mm) suits many common hole depths, from fixture plates to motor housings.
SPMG07T308 inserts are widely available and economical, offering two cutting edges per insert. Double helix internal cooling ensures stable chip evacuation even in deeper holes. This U drill is particularly effective on lathes because the C32 shank provides concentric clamping in collet chucks. Typical applications include turned shafts, gear blanks, hydraulic fittings, and general repair work. For shops that handle a variety of materials, stocking one drill body and several insert grades (steel, stainless, cast iron) reduces tooling costs. The 1700‑1800 RPM range is achievable on most CNC machines without special spindles. Upgrade your drilling operations from HSS to indexable and see immediate productivity gains.
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 →
