The Dormer Pramet C60 5/16 Inch HSS Double Ended Slot Drill is a versatile two-flute end mill designed for shoulder milling, slot milling, and ramping in free-machining steel. With two cutting ends and a robust 3/8" Weldon shank, it delivers reliable performance in standard milling setups.

• Diameter: 5/16" (0.3125")
• Number of Flutes: 2
• Length of Cut: 9/16" (14.3 mm)
• Overall Length: 3.5" (89 mm)
• Shank: 3/8" Weldon shank
• Material: High-speed steel (HSS) with bright finish
• Helix Angle: 30°
• End Type: Double-ended slot drill
• Applications: Shoulder milling, slot milling, and ramping in free-machining steel
• Standard: ANSI standard dimensions

Two cutting ends maximize tool life and reduce downtime by providing double the usable cutting surfaces. The 30° helix supports efficient chip evacuation and smooth cutting, helping maintain accuracy and surface finish in solid steel workpieces. The HSS bright finish offers solid wear resistance for repeated milling cycles, while the Weldon shank ensures a secure, stable grip in collets and holders. This end mill is well-suited for shop environments performing routine slotting and shoulder work on automotive components, hardware, and fabrication projects where dependable, repeatable results matter.