6: Cutting Diameter (6 mm) — The diameter of the cutting head.
6: Shank Diameter (6 mm) — The diameter of the holding shaft. Since the cutting diameter and shank diameter are identical, this is a Straight Shank (or Parallel Shank) tool.
13: Flute Length / Length of Cut (13 mm) — The maximum depth the tool can cut along its side walls.
57: Overall Length (57 mm) — The total length of the tool from top to bottom.
4F: Number of Flutes (4 Flutes) — The tool has 4 cutting edges.
Technical Category & Usage
Main Category: Solid End Mill
Sub-Category: Straight Shank Short-Series End Mill (often conforming to international standards like DIN 844-K for HSS or DIN 6527 for Carbide).
Primary Operations: It is optimized for Peripheral Milling (Side Wall Cutting), Profiling, and Finishing.
Chip Evacuation: Having 4 flutes means smaller chip pockets. This makes it ideal for hard, short-chipping materials like Carbon Steels, Alloy Steels, and Stainless Steel, but prone to clogging in soft, gummy materials like Aluminum.