Sutton 6mm Rougher - HR (fine) - R30 VA - Regular E251

Sutton Tools is an Australian-owned manufacturer of precision cutting tools and threading accessories, supplying tradespeople, engineers, and manufacturing operations across Australia and internationally. Their product range spans taps, dies, drills, endmills, holesaws, and related tooling — all engineered to perform consistently under real industrial conditions. AIMS Industrial supplies the Sutton Tools range to Australian businesses as part of our commitment to stocking quality, trusted brands.

Sutton roughing endmills (also called corncob or serrated endmills) use a wavy or serrated cutting edge to break chips into short segments, allowing higher material removal rates in roughing passes with reduced vibration and cutting forces.

Where this product is used

Used for high-rate material removal in the roughing stage of milling operations before finishing passes with standard endmills.

• Aggressive roughing of steel, cast iron, and alloy billets on CNC machining centres where cycle time reduction in pre-finishing operations is critical.
• Cavity roughing in mould and die work where large volumes of hardened tool steel need to be removed before EDM or finish milling.
• Vibration-resistant roughing in long-reach setups or thin-walled components where serrated edges reduce deflection and chatter forces.

Selecting the right option

Roughing endmills leave a characteristic rippled surface — always follow with a finishing pass using a standard endmill. Use at higher feed rates than equivalent-diameter standard endmills; reduce depth of cut if vibration occurs. Match cobalt or carbide grade to the workpiece material and machine capability.