The Dormer Pramet C123 5.5mm HSS-E-Powder Metallurgical Slot Drill is a compact, efficient two-flute tool designed for precise slotting, shoulder milling, and ramping in steel and copper alloys. With a DIN 844 K standard and a robust 6 mm Weldon shank, it’s built for reliability in pro shop to production environments.

• Diameter: 5.5 mm
• Flutes: 2 flutes for efficient cutting and chip evacuation
• Length of cut (DOC): 13 mm
• Overall length: 57 mm
• Shank: 6 mm Weldon shank for secure toolholding
• Material/Construction: HSS-E with powder metallurgy and bright finish for enhanced wear resistance
• Helix angle: 30° for improved cutting action and chip control
• Rake angle: 12° to optimize cutting in steel, cast steel, and copper alloys
• Standard: DIN 844 K compliant for interchangeability with DIN-standard tooling
• Primary applications: Slot milling, shoulder milling, and ramping in steel, cast steel, and copper or copper alloys

This tool is designed to deliver clean slots with consistent dimensions, even on challenging materials. The combination of a 30° helix and 12° rake provides smooth entry and efficient chip removal, reducing surface roughness and tool chatter. The powder-metallurgical HSS-E substrate offers improved hardness and wear resistance over conventional HSS, helping to extend tool life across repeated passes. The Weldon shank ensures dependable clamping and minimal runout in standard milling setups, making it a dependable choice for precision slotting, lightweight shoulder milling, and ramping operations in a variety of metals.