AMG Step Drill with Fixed Shank – High-Precision Multi-Diameter
Drilling Solution
The AMG fixed-shank step drill is a multifunctional solid carbide
drill specially developed for multi-diameter hole processing, and
high-precision drilling. Featuring an integrated step design, it
can complete multiple diameter holes in a single feed,
significantly improving machining efficiency . This tool is widely
used in mechanical processing, mold manufacturing, aerospace
components, automotive parts, and electronic equipment.
Manufactured from premium ultra-fine grain carbide, the AMG step
drill offers excellent wear resistance and fracture toughness.
Combined with high-precision CNC grinding and advanced coating
technologies such as TiAlN and DLC, it delivers outstanding
stability and cutting performance at high speeds. The fixed shank
design ensures stable clamping, making it especially suitable for
CNC machining centers and CNC drilling and milling machines.
Applications:
Multi-diameter one-pass drilling
Internal step forming and deburring
Drilling of electronic and electrical equipment housings
Automotive engine housings and mold structural parts
Specifications :
| Step Size A×B (mm) | Shank Diameter D (mm) | Overall Length L (mm) | Material | Coating Options |
|---|
| Φ3×Φ5 | 4 | 50 | HM | DLC / TiAlN |
| Φ5×Φ8 | 6 | 60 | HM | TiAlN / Mirror Finish |
| Φ6×Φ10 | 8 | 70 | HM | ZrN / TiAlN |
Working Principle:
The AMG fixed-shank step drill employs an integrated multi-step
geometry to simultaneously form multiple hole diameters in a single
drilling operation. The fixed shank design ensures high coaxiality
and low runout, effectively reducing tool changes and
repositioning, thereby greatly improving production efficiency and
assembly accuracy.
Customer Key Advantages:
High hole position accuracy, ideal for dense housings and
multi-step structures
Smooth surface finish, reducing post-processing and chamfering work
Excellent edge stability with wear-resistant carbide and advanced
coatings
Consistent hole diameter and step size across multiple workpieces
Strong customization capability to meet non-standard structures and
multi-material applications
