DR-5D-N : DR-TWIST indexable square insert drills with coolant holes. Drilling depth 5xD.
COOLANT THROUGH TOOL 
  DesignationDD max LL1L4dD3ThGICATGIREMgiic
  DR140-070-20-05-5D-N 14.0016.1070.088.050.020.0025.00G1/4"3202354 0
  DR150-075-20-05-5D-N 15.0016.8075.093.050.020.0025.00G1/4"3202355 0
  DR160-080-20-05-5D-N 16.0017.3580.098.050.020.0025.00G1/4"3202356 0
  DR170-085-20-05-5D-N 17.0017.9885.0103.050.020.0025.00G1/4"3202357 0
  DR180-090-25-06-5D-N 18.0019.7390.0110.056.025.0032.00G3/8"3202358 0
  DR190-095-25-06-5D-N 19.0020.3595.0115.056.025.0032.00G3/8"3202359 0
  DR200-100-25-06-5D-N 20.0020.98100.0120.056.025.0032.00G3/8"3202360 0
  DR210-105-25-07-5D-N 21.0023.63105.0125.056.025.00 32.00G3/8"3202361 0
  DR220-110-25-07-5D-N 22.0024.25110.0130.056.025.00 32.00G3/8"3202083 0
  DR230-115-25-07-5D-N 23.0024.88115.0135.056.025.00 32.00G3/8"3202362 0
  DR240-120-25-07-5D-N 24.0025.50120.0140.056.025.00 32.00G3/8"3202363 0

Hole tolerance D+0.35/-0.05 in average conditions. However it can be higher or lower according to machine and tooling conditions.