Allied Machine 181N-18 Original T-A® 1 Series Metric Replaceable Spade Drill Insert, 18 mm Drill, 5/32 in THK

Original T-A® is an excellent choice for general purpose use. The design provides fast penetration rates that produce good hole size and finish. Standard geometry combines highly efficient and stable cutting action to minimize power consumption. Recommended for use in most steels, cast irons, high temperature alloys and aluminum alloys. Drill insert systems set the standard for replaceable insert technology, delivering consistent performance and reduced cost per hole, increased productivity and outstanding tool life.