The Dormer Pramet C305 6.0mm HSS-E-Powder Metallurgic Primax Flatted Shank 3-Flute Slot Drill is built for accurate slot milling, shoulder milling, and ramping in a compact standard length. Designed for professional workshops and precision machining, it delivers reliable performance with a focus on clean slots and consistent results.

• Diameter: 6.0 mm
• Flutes: 3-flute design for efficient chip evacuation and smooth cutting action
• Length of cut: 13 mm, optimized for shallow to intermediate slots
• Overall length: 57 mm for versatile reach in confined areas
• Shank: Weldon 6 mm flat shank with Primax construction for secure clamping
• Material: HSS-E powder metallurgy with bright finish for enhanced wear resistance
• Helix angle: 30° to improve cutting efficiency and chip flow
• Rake angle: 12° for effective cutting in shoulder and slot milling
• Standard: DIN 844 K compatible, ensuring reliable fit with standard tool holders
• Applications: Ideal for slot milling, shoulder milling, and ramping tasks
• Workpiece materials: Suitable for free machining plain carbon steels, copper and copper alloys, plus Fe-, Ni-, and Co-based high-temperature alloys

This slot drill combines a robust powder-metallurgical HSS-E core with a bright finish to resist wear and maintain sharpness under demanding cuts. The 3-flute geometry and moderate helix balance rapid material removal with good surface finish, helping to reduce burr formation in slots and pockets. The Weldon flat shank provides secure clamping for minimal runout and stable performance during continuous cutting, while the DIN 844 K standard ensures broad compatibility with common milling setups. Whether you’re creating precise slots in steel components, preparing copper busbar channels, or ramping into hard alloys, this tool is designed to deliver dependable results with efficient chip evacuation and controlled cutting action.