The Dormer Pramet C353 16.0 mm slot drill is a compact, high‑performance tool designed for precise slotting, shoulder milling, and ramping in steel and alloys. Built for tight pockets and demanding workpieces, it combines tough HSS‑E substrate with a protective Alcrona Primax coating to deliver reliable edge life and clean slots.

• Diameter: 16 mm
• Length of cut: 19 mm
• Overall length: 79 mm
• Reach with neck relief: 30.5 mm
• Shank: 16 mm Weldon shank with flatted section for secure seating
• Series / length: Extra-short design for access in constrained pockets
• Flutes: 3 flutes for efficient chip evacuation
• Helix angle: 30°
• Rake angle: 12°
• Coating / substrate: HSS‑E powder metallurgy with Alcrona Primax coating
• DIN standard: DIN 327 D
• Applications: Slot milling, shoulder milling, and ramping in steel, cast steel, cast iron, copper and copper alloys, and titanium and titanium alloys

This tool is purpose‑built for repeated, accurate pockets and shoulders. The 3‑flute geometry provides smooth cutting and efficient chip clearance, while the 30° helix and 12° rake optimize cutting action in a range of materials. The powder‑metallurgical HSS‑E substrate, combined with the Alcrona Primax coating, offers enhanced wear resistance and extended tool life under typical machining conditions. The flatted Weldon shank ensures secure clamping and precise alignment, reducing runout in challenging setups.