Designed for shoulder milling, slot milling, and ramping in non-ferrous metals, the Dormer Pramet C159 16.0mm HSS-E slot drill combines a cobalt‑enhanced cutting edge with a precise 2‑flute geometry for reliable, repeatable results. Built to DIN 844 K standards and featuring a flatted 16mm Weldon shank, this tool fits common holders with minimal runout and secure orientation.

• Diameter: 16.0 mm
• Flutes: 2 flutes for efficient, stable cutting in slots
• Length of cut: 32 mm
• Overall length: 92 mm
• Reach with neck relief: 43.5 mm
• Shank: Weldon 16 mm
• Material: HSS‑E cobalt‑based with bright finish for wear resistance
• Helix angle: 40° for smooth cutting action in non-ferrous metals
• Rake angle: 20° to support shoulder milling and ramping
• Standard: DIN 844 K compatibility

The 40° helix and 20° rake are optimized to deliver clean slot walls, reduced cutting forces, and improved surface finish when slot milling and ramping through aluminum and other non‑ferrous alloys. The cobalt enrichment (HSS‑E) enhances wear resistance for longer tool life in demanding operations, while the bright finish helps to visually assess wear and chip control during machining. The 92 mm overall length and 43.5 mm neck relief provide ample reach for deeper pockets and shoulder steps without sacrificing rigidity, making it a dependable choice for high‑precision machining workflows.