Durable 1-inch HSS-E end mill from Dormer Pramet, engineered for shoulder and slot milling, as well as ramping, in free machining and plain carbon steel and copper alloys. This regular-length, 4-flute cutter delivers rigidity, wear resistance, and reliable chip control for precise, repeatable results.

• Diameter: 1"
• Flutes: 4-flute design for efficient material removal, good surface finish, and effective chip evacuation
• Length of cut: 2"
• Overall length: 4.5"
• Shank: 1" Weldon flat shank for positive drive and reduced slippage
• Material: HSS-E (cobalt-based) with bright finish for enhanced wear resistance and heat tolerance
• Helix angle: 30° to optimize cutting action for shoulder milling, slot milling, and ramping
• Applications: Suitable for free-machining and plain carbon steel and copper/copper alloys
• Standards: ANSI standard geometry ensuring compatibility with common tool holders

Designed to deliver dependable performance across common milling tasks, this end mill helps you achieve clean flats, precise pockets, and smooth ramps with consistent tool life. The cobalt-based HSS-E composition maintains hardness at elevated temperatures, while the 30° helix fosters efficient chip flow and reduces built-up edge. The solid Weldon shank provides a secure grip in collets or end-mill holders, reducing runout and chatter during heavier cuts. Whether you’re deburring shoulders, slotting into narrow areas, or ramping into pockets, this end mill is a versatile choice for steel and copper alloy workpieces.