Seco Tools Inc. has added Combimaster heads to its line of Square 6 square shoulder milling cutters. Combimaster is a replaceable head milling cutter system with a wide range of shank types, lengths and interchangeable cutter heads to offer maximum flexibility over a wide range of application. All Combimaster heads and shanks come standard with through coolant capabilities. The heads are available in many inserts styles and sizes along with different cutter pitches. The Square 6 is a reliable, cost-effective, first choice tool for a variety of general machining operations including facemilling, contouring, plunging, slotting, and square shoulder milling. This flexibility allows users to carry less inventory and reduce tool changes to gain productivity, according to the company. The Square 6 features trigon-shaped inserts with six cutting edges, lowering the cost per edge and delivering parts for less cost. For added productivity, there are four Duratomic grades available for Square 6 as well as three different insert geometries and three different pitches. The nickel-coated Square 6 cutter bodies provide longer tool life and come in a diameter range of 40 to 160mm (1.5" to 6.0").Given the range of product choice, there is a Square 6 combination that will meet any machine size, strength or set up ridigity requirements. With the Square 6, inserts are set to achieve a true 90 degree setting angle, creating clean 90 degree walls the first time and eliminating secondary operations.