Designed for precision slot and shoulder milling, the Dormer Pramet C123 8.5mm HSS‑E powder metallurgical slot drill is built for reliable performance in steel, cast steel, and copper alloys. With a robust Weldon shank and DIN 844 K compatibility, it’s a dependable choice for professional shop setups and demanding production work.

• Diameter: 8.5 mm
• Length of cut: 19 mm
• Overall length: 69 mm
• Shank: Weldon, 10 mm
• Material: HSS‑E powder metallurgical with bright finish
• Flutes: 2
• Helix angle: 30°
• Rake angle: 12°
• Standards: DIN 844 K
• Applications: Shoulder milling, slot milling and ramping in steel, cast steel, copper and copper alloys

The powder‑metallurgical HSS‑E composition delivers improved wear resistance and edge retention, helping you achieve consistent, burr‑free slots and clean shoulders even under higher cutting speeds. The 30° helix promotes steady chip formation and smoother cutting action, while the 12° rake angle enhances gentler entry into workpieces, reducing feeding forces. A bright finish aids visibility during setup and inspection, and the 10 mm Weldon shank provides secure clamping and minimized runout in standard milling chucks. Designed to meet DIN 844 K, this drill is a practical, long‑lasting tool for precise slotting, shoulder milling, and ramping across common engineering materials.