Dormer Pramet C123 1/8 Inch HSS-E-Powder Metal Flatted Shank 2 Flute Standard Length Slot Drill DIN 844 K

Meet the Dormer Pramet C123 slot drill—a compact, two-flute tool built for precise slotting, shoulder milling, and ramping in steel, cast steel, and copper alloys. Designed to DIN 844 K standards with a robust Weldon shank, it delivers reliable performance in both professional workshops and skilled hobby setups.

• Diameter: 1/8" (3.175 mm) slot drill with a 10 mm length of cut
• Overall length: 54 mm for extended reach in tight pockets and complex pockets
• Shank: 6 mm Weldon shank for secure clamping and reduced runout
• Material: Powder metallurgical HSS-E with a bright finish for enhanced hardness and wear resistance
• Geometry: 30° helix and 12° rake angle to optimize cutting action, chip evacuation, and edge protection
• Standard: DIN 844 K compatibility for easy replacement and broad tool compatibility
• Configuration: 2-flute design tailored for clean slot milling, shoulder milling, and ramping

This slot drill is purpose-built to produce accurate, smooth slots in a variety of metals. The powder metallurgy HSS-E core provides durable cutting performance, while the bright finish helps reduce built-up edge during longer runs. The 30° helix improves chip flow and reduces cutting forces, contributing to steadier cuts and better surface finishes. With its fixed 6 mm Weldon shank, this tool stays securely in place on standard milling setups, helping you minimize tool deflection and achieve consistent results across jobs—from through-slots to precise shoulder milled features.