Double-edged straight groove pointed knife

Five Tips for a Double-Edged Straight Groove Pointed Knife

A double-edged straight groove pointed knife uses two cutting edges and a pointed end to create straight slots, outlines, entry details, and narrow recesses. The dual-edge layout provides two cuts per revolution and shares the load, while the pointed profile supports precise starts and detailed geometry. Select the diameter, point shape, flute length, shank size, carbide grade, and coating for the workpiece.

Clamp the cutter with minimal overhang in a clean tool holder and confirm low runout before machining. Use spindle speed and feed appropriate for two flutes, because underfeeding causes rubbing while excessive chip load can damage the point. Apply shallow progressive passes, maintain steady engagement through corners, and clear chips before they are recut. Avoid plunging beyond the tip specification and inspect both edges for equal wear or chipping. Correct setup and accepted milling cutter practices improve slot accuracy, finish, and tool life.