LMT Onsrud LP introduces a new series to its high-performance endmill offering; endmills for steel and cast iron.

The combination of both the variable-helix and the variable-index geometry prevents harmonics, reducing chatter, therefore leaving a superior finish on the work piece, according to the company. The open flute form increases chip flow, which results in higher feed rates.

The tapered web increases the endmill's toughness and the variable helix reduces the cutting forces, therefore an increase the depth of cut that can be achieved. Chip control, higher feed rates and increased depth of cut ensure a higher material-removal rate. A combination of the substrate, the advanced cutting edge conditioning and the innovative PVD high-performance coating, results in increased tool life.