Dormer Pramet C305 7.0mm HSS-E-Powder Metal Primax Flatted Shank 3 Flute Standard Length Slot Drill DIN 844 K

The Dormer Pramet C305 7.0 mm slot drill is a precision tool designed for slot milling, shoulder milling, and ramping in a range of steels and alloys. This short-series cutter features a 3-flute design, a 10 mm Weldon shank with a flatted drive section, and a Primax powder-metallurgical HSS-E body with a bright finish for dependable performance.

• Diameter: 7.0 mm
• Length of Cut: 16 mm
• Overall Length: 66 mm
• Number of Flutes: 3
• Shank: Weldon, 10 mm with flatted drive section
• Material: HSS-E powder-metallurgical (Primax) with bright finish
• Helix Angle: 30°
• Rake Angle: 12°
• Standard: DIN 844 K
• Primary Uses: Shoulder milling, slot milling, and ramping
• Material Compatibility: Free machining and plain carbon steel, copper and copper alloys, Fe-based, Ni-based, and Co-based high-temperature alloys

Equipped with a 30° helix and a 12° rake, this drill optimizes cutting efficiency and chip evacuation while maintaining control in tight pockets and slots. The powder-metallurgical HSS-E substrate delivers improved wear resistance and durability, helping to extend tool life in demanding materials. The DIN 844 K specification ensures dependable interchangeability with standard holders, and the Weldon shank provides a secure, repeatable drive in machine spindles. Ideal for precise finishing in free machining steels, copper alloys, and high-temperature alloys, it supports clean slots, accurate shoulders, and reliable ramping passes.