The Dormer Pramet C11 7/8" HSS-E-Powder Metall slot drill is built for precision slot milling, shoulder milling, and ramping in metalworking projects. Designed for tight pockets and high-accuracy work, its extra-short form and flatted shank provide reliable, chatter-free performance in steel and copper alloys.

• Diameter: 7/8" (22 mm)
• Length of cut: 22 mm
• Overall length: 88 mm
• Reach with neck relief: 37.5 mm
• Shank: Weldon, 20 mm, flatted design for secure drive
• Material: Powder Metallurgical HSS-E with bright finish
• Flutes: 2
• Helix angle: 30°
• Rake angle: 12°
• Standards: DIN 327 D
• Applications: Shoulder milling, slot milling, and ramping
• Workpiece compatibility: Free-machining steel and copper or copper alloys

This tool is optimized for clean, precise slots and shoulders in challenging metals. The 30° helix supports efficient chip evacuation and smooth cutting at plunges and ramps, while the 12° rake helps reduce built-up edge and produce consistent finishes. The PM-HSS-E composition offers improved wear resistance and durability compared with traditional high-speed steels, translating to longer tool life in demanding jobs. With its compact geometry and rigid Weldon shank, it excels in tight tolerances and situations where stability matters most.