Indexable Drill Inserts & Holders INDEX DSP Series SPMG Inserts - internal coolant, 4 cutting edges.................B053 DSP 2D Holders....................................................................B055 DSP 3D Holders....................................................................B057 DSP 4D Holders....................................................................B059 DSP 5D Holders....................................................................B061 DWC Series WCMT Inserts - internal coolant, 3 cutting edges...................B064 DWC 2D Holders...................................................................B066 DWC 3D Holders...................................................................B068 DWC 4D Holders...................................................................B070 DWC 5D Holders...................................................................B072 B051