The Dormer Pramet C305 9.0 mm slot drill is a compact, high-precision HSS-E powder-metallurgical tool designed for reliable slot and shoulder milling, as well as ramping, in a range of steels and alloys. Built for professional machine shops and engineers, it delivers consistent performance in free machining steels, copper and copper alloys, and high-temperature metallic families.

• Diameter: 9.0 mm
• Length of cut: 19 mm
• Overall length: 69 mm
• Shank: 10 mm Weldon shank
• Material: HSS-E (powder-metallurgical) with bright finish
• Flutes: 3
• Helix angle: 30°
• Rake angle: 12°
• Standard: DIN 844 K
• Designation: Primax

Designed for shoulder milling, slot milling, and ramping, the tool’s 30° helix and 12° rake optimize chip evacuation and cutting efficiency. The powder-metallurgical HSS-E construction provides improved wear resistance and heat resistance for durable performance across a spectrum of materials, from plain carbon steels to copper alloys and iron-, nickel-, and cobalt-based high-temperature alloys. The Weldon 10 mm shank ensures secure, repeatable clamping for accurate, stable milling operations.