Designed for precision milling tasks, the Dormer Pramet C123 4.5mm HSS-E-Powder Metallurgical Slot Drill is a compact, two-flute tool built for slot milling, shoulder milling, and ramping in steel and copper alloys. With a DIN 844 K-compliant 6 mm Weldon shank, it delivers reliable performance across a range of machining setups.

• Diameter: 4.5 mm
• Number of flutes: 2
• Length of cut: 11 mm
• Overall length: 55 mm
• Shank type: Weldon 6 mm
• Material: HSS-E with powder metallurgy core
• Finish: Bright finish
• Helix angle: 30°
• Rake angle: 12°
• DIN standard: 844 K
• Applications: Shoulder milling, slot milling, and ramping
• Compatible materials: Steel, cast steel, copper and copper alloys

This slot drill is tailored for clean, accurate slots and robust performance in demanding materials. The 2-flute design provides efficient chip evacuation and a stable cut in slot milling, while the powder-metallurgical HSS-E construction offers enhanced wear resistance and longer tool life under typical cutting conditions. The 30° helix promotes smooth chip formation and reduces burrs, and the 12° rake angle improves cutting efficiency in shoulder and ramping work. The 6 mm Weldon shank ensures secure clamping for repeatable results, making this tool a reliable choice for engineers and machinists working in steel, cast steel, and copper alloys. Ideal for workshops and job shops performing precise internal slots, narrow shoulders, or ramp milling with consistent, high-quality finishes.