Introduction
The document introduces the APE90-AO12 Porcupine Milling Cutter, detailing its components, specifications, and applications. It includes information on the front part, base, and segmented versions of the cutter, along with clamping bolts and inserts.

Specifications
The milling cutter is available in various configurations, each with specific dimensions and insert compatibility. Key specifications include cutter diameter, clamping bolt type, and insert quantity. The document provides detailed tables listing product codes, dimensions, and other technical parameters.

Components
The cutter consists of three main parts: the front part, the base, and the segmented porcupine milling cutter. Each part has distinct product codes and specifications. The document emphasizes that the front and base parts are sold without clamping bolts and wrenches.

Inserts
The AOMT 1204 inserts are compatible with the APE90-AO12 cutter. The document lists various insert types, each with specific dimensions and applications, such as roughing and finishing.

Installation Notes
Guidelines for proper installation of the porcupine milling cutter are provided, highlighting the importance of correct lap to avoid leftover material on the workpiece.

Success Stories
Two case studies demonstrate the cutter's effectiveness. The first involves roughing a rockshaft made of TC18 material, using the AOMT 120408ER-MM4 AP403S insert with coolant. The second case involves bottom roughing of high-strength steel without coolant, using the AOMT 120408ER-MM4 AP351M insert.

Performance Comparison
The document compares the tool life of the Achteck solution with existing solutions, showing improved performance in terms of hours and pieces processed.