The Dormer Pramet C11 40.0 mm HSS-E powder metallurgical slot drill is built for precision slot milling, shoulder milling, and ramping in free-machining steels and copper alloys. Its extra-short series and robust 2-flute geometry deliver reliable performance in tight pockets and shallow slots.

• Diameter: 40.0 mm
• Length of cut: 38 mm
• Overall length: 130 mm
• Reach / neck relief: 59.5 mm
• Shank: Flatted Weldon shank, 40 mm
• Material: HSS-E powder metallurgical with bright finish
• Flutes: 2
• Helix angle: 30°
• Rake angle: 12°
• Standard: DIN 327 D
• Applications: Shoulder milling, slot milling, and ramping
• Compatible materials: Free machining steel and copper or copper alloys

Engineered for stability and control, this tool maintains consistent slot width and shoulder finish even in demanding jobs. The 2-flute design promotes effective chip evacuation in softer metals, while the 30° helix and 12° rake balance cutting forces and surface finish. The flatted Shank and Weldon interface prevent rotation under load, enabling repeatable accuracy in high-precision applications. With a DIN 327 D standard and a bright finish, it’s ready for reliable performance in standard tool holders and everyday milling workflows.