Meet the Dormer Pramet C353 6.5 mm HSS-E powder-metallurgical slot drill—an extra-short, three-flute tool designed for precise slot milling, shoulder milling, and ramping in steel, cast iron, copper alloys, and titanium alloys. With a Weldon 10 mm shank and Alcrona Primax coating, it’s built for demanding setups where rigidity and wear resistance matter most.

• Diameter: 6.5 mm
• Length of cut: 10 mm
• Overall length: 60 mm
• Flutes: 3-flute configuration
• Shank: Weldon 10 mm
• Coating: Alcrona Primax on HSS-E powder metallurgy
• Helix angle: 30°
• Rake angle: 12°
• Standard: DIN 327 D
• Material family: HSS-E powder metallurgy
• Applications: Shoulder milling, slot milling, and ramping in steel, cast steel, cast iron, copper alloys, and titanium alloys

The combination of a 30° helix and a 12° rake angle delivers efficient cutting action and smooth chip evacuation across a range of metals, including challenging materials. The extra-short design enhances rigidity in tight cavities and shallow pockets, helping you maintain accurate slot widths and clean shoulders. The DIN 327 D standard ensures compatibility with common tooling setups, while the Alcrona Primax coating reduces wear and heat buildup for longer tool life in everyday production. This slot drill is ideal for shops needing reliable performance in precision milling tasks, from intricate slots to shoulder cuts, without compromising surface finish or dimensional accuracy.