Custom Multi-Stage Step Drill

Product Overview

This custom solid carbide multi-stage step drill is a high-precision, non-standard cutting tool engineered for one-pass machining of complex multi-diameter holes. Designed for CNC machining, it delivers exceptional dimensional accuracy and efficiency for demanding aerospace, automotive, and mold applications.

Key Features

• Multi-Stage Custom Geometry: Tailored stepped profile with multiple diameters (Ø11.8, Ø26, Ø34.5, Ø40), custom angles (60°, 118°), and corner radii (R0.3/R0.8/R3) to match exact workpiece requirements.

• Ultra-Precision Tolerance Control: Strict concentricity and dimensional tolerances (≤0.01mm) ensure perfect hole alignment and fit.

• Premium Material & Coating: High-grade carbide substrate with advanced wear-resistant coating for extended tool life and high-speed machining performance.

• Optimized Flute Design: Precision-ground flutes for smooth chip evacuation, reduced vibration, and burr-free hole finishes.

Core Benefits

✅ One-Pass Machining: Eliminates multiple tool changes and secondary operations, cutting cycle time by 40%+
✅ Unmatched Accuracy: Meets strict aerospace-grade dimensional and concentricity requirements
✅ High Rigidity & Stability: Integral solid carbide construction ensures consistent performance in deep-hole machining
✅ Versatile Compatibility: Ideal for steel, alloy, and hard-to-machine materials