Durable long-series slot drill from Dormer Pramet, engineered for shoulder milling and slot milling in free-machining steel and copper alloys. With a 20 mm diameter and extended reach, this tool delivers reliable performance in deep pockets and tight spaces.

• Diameter: 20.0 mm
• Length of Cut: 75 mm
• Overall Length: 141 mm
• Reach / Neck Relief: 90.5 mm
• Shank: Weldon 20 mm
• Material: Cobalt-based HSS-E
• Finish: Bright finish
• Flutes: 3
• Helix Angle: 30°
• Rake Angle: 12°
• Standard: DIN 844 L
• Applications: Shoulder milling and slot milling
• Material Compatibility: Free machining steel and copper or copper alloys

This tool is built for precision and durability in demanding metals. The cobalt-based HSS-E construction provides improved wear resistance and heat tolerance, helping maintain sharpness and consistent hole geometry across long cutting lengths. The 3-flute design enhances chip evacuation and stability in deep slots, while the 30° helix and 12° rake optimize cutting action and reduce built-up edge. A Weldon 20 mm shank ensures solid clamping and minimizes runout, making it a dependable choice for repeatable production work in DIN 844 L-compatible setups.