Durable 12 mm two-flute slot drill from Dormer Pramet, built for shoulder and slot milling in free‑machining steel and copper alloys. With a 12 mm plain shank and a long reach, it delivers reliable performance for deep pockets and precise shoulders.

• Diameter: 12.0 mm
• Flutes: 2-flute design for efficient chip removal
• Length of cut: 26 mm
• Total length: 200 mm
• Shank: 12 mm plain shank
• Material: HSS‑E cobalt‑based with bright finish
• Helix angle: 30° for smooth entry and cutting action
• Rake angle: 12°
• Application: Shoulder milling and slot milling
• Standard: Dormer standard (C167)
• Material compatibility: Suitable for free‑machining steel and copper or copper alloys

This slot drill combines the wear resistance of HSS‑E cobalt with a bright finish that supports easy inspection and reduced built‑up edge. The 30° helix and 12° rake angle are chosen to balance aggressive chip evacuation with stable cutting in medium‑duty milling tasks. The long 200 mm overall length and 26 mm depth of cut create practical reach for deep slots and broad shoulders, minimizing tool changes during production runs. Ideal for workshop environments that require dependable, versatile tooling for free‑machining steels and copper alloys.