The Dormer Pramet C352 20.0mm slot drill is a precision HSS‑E powder metallurgy tool designed for slot milling, shoulder milling, and ramping in steel and alloy workpieces. Built for reliability in production environments, it combines a robust 3‑flute design with a high‑performance Alcrona Primax coating to deliver consistent results across a range of materials.

• Diameter: 20.0 mm
• Flutes: 3‑flute configuration for balanced rigidity and effective chip removal
• Cutting length and reach: 38 mm length of cut, 104 mm overall length, 53.5 mm reach with neck relief
• Shank: Weldon 20 mm shank for secure seating in collets and holders
• Material and coating: Powder‑metallurgical HSS‑E with Alcrona Primax coating for enhanced wear resistance
• Helix and rake: 30° helix and 12° rake angle optimized for shoulder milling, slotting, and ramping
• Standard: DIN 844 K, ensuring compatible interchangeability with standard tooling systems
• Applications: Ideal for slot milling, shoulder milling, and ramping in steel, cast steel, cast iron, copper/copper alloys, and titanium/titanium alloys

This tool is built to handle deep slots and precise shoulders with stable, clean finishes. The 3‑flute design supports steady chip flow and reduced vibration, while the Alcrona Primax coating minimizes wear and heat buildup in demanding materials. The 53.5 mm reach with neck relief helps you access deeper features without interference, making it suitable for a wide range of milling scenarios—from structural components in steel to intricate slots in titanium alloys. For best results, use proper workholding and coolant to maximize precision, surface quality, and tool life.