Dormer Pramet C123 5/16 Inch HSS-E-Powder Metal Flatted Shank 2 Flute Standard Length Slot Drill DIN 844 K

The Dormer Pramet C123 5/16 Inch HSS-E-Powder Metall Slot Drill is a compact, two-flute tool designed for precise slotting, shoulder milling, and ramping in steel, cast steel, and copper alloys. Built to performance in short-series work, it combines DIN 844 K compatibility with the durability of powder-metallurgical HSS-E and a bright finish for reliable cutting edge life.

• Diameter: 5/16" slot drill (approximately 7.94 mm) for clean, accurate slots
• Flutes: 2 flutes with a short-series geometry to optimize chip evacuation and surface finish
• Length of Cut: 19 mm working length for controlled depth in narrow slots
• Overall Length: 69 mm, providing reach and rigidity in constrained setups
• Shank: Weldon 10 mm shank for secure clamping and reduced runout
• Material & Finish: Powder-metallurgical HSS-E with bright finish for wear resistance and a sharp cutting edge
• Helix & Rake: 30° helix and 12° rake angle to enhance cutting action and chip control across materials
• Standards: DIN 844 K compatible for interchangeability with compatible holders
• Applications: Specifically suited for slot milling, shoulder milling, and ramping in steel, cast steel, and copper/copper alloys

The combination of powder-metallurgical HSS-E and a bright finish delivers improved edge retention and wear resistance in demanding slots and shoulders, helping maintain accuracy across passes. The 30° helix supports efficient chip evacuation and smoother cutting, while the 12° rake angle aids in stable cutting action when working with tougher steels or copper alloys. The Weldon 10 mm shank ensures a robust grip in standard tool-holders, minimizing vibration and improving repeatable results in tight fixtures. With its DIN 844 K standard and compact length, this drill is a dependable choice for precise slotting tasks in a range of common engineering steels and copper-based alloys, offering consistent performance in short-production runs and setup-intensive work.