DR-4D-T : Indexable insert drills for non-rotating applications with coolant holes and one flat shank, drilling depth 4xD.
COOLANT THROUGH TOOL 
  DesignationDD max LL1L4dD3ThTh1GICATGIREMgiic
  DR140-056-20-05-4D-T 14.0015.9056.077.050.020.0027.70NPT 1/4-18NPT 1/16-273202325 0
  DR160-064-20-05-4D-T 16.0017.9064.082.050.020.0027.70NPT 1/4-18NPT 1/16-273202326 0
  DR180-072-25-06-4D-T 18.0020.9072.094.056.025.0032.00NPT 3/8-18NPT 1/16-273202327 0
  DR210-084-25-07-4D-T 21.0024.9084.0109.056.025.0032.00NPT 3/8-18NPT 1/16-273202328 0
  DR250-100-32-09-4D-T 25.0027.90100.0133.058.032.0042.00NPT 1/2-14NPT 1/16-273202329 0
  DR280-112-32-09-4D-T 28.0030.90112.0144.058.032.0042.00NPT 1/2-14NPT 1/16-273202330 0
  DR310-124-32-09-4D-T 31.0031.90124.0157.058.032.0042.00NPT 1/2-14NPT 1/16-273202331 0
  DR320-128-32-09-4D-T 32.0032.90128.0161.058.032.0042.00NPT 1/2-14NPT 1/16-273202907 0
  DR330-132-32-12-4D-T 33.0034.90132.0169.058.032.0050.00NPT 1/2-14NPT 1/16-273202908 0
  DR350-140-32-12-4D-T 35.0039.90140.0177.058.032.0050.00NPT 1/2-14NPT 1/16-273202332 0
  DR400-160-40-12-4D-T 40.0044.90160.0197.068.040.0050.00NPT 3/4-14NPT 1/4-183202333 0
  DR450-180-40-16-4D-T 45.0051.90180.0215.068.040.0060.00NPT 3/4-14NPT 1/4-183202334 0
  DR520-208-40-16-4D-T 52.0055.90208.0243.068.040.0060.00NPT 3/4-14NPT 1/4-183202335 0
  DR560-224-40-16-4D-T 56.0057.90224.0259.068.040.0060.00NPT 3/4-14NPT 1/4-183202909 0
  DR580-232-40-16-4D-T 58.0058.90232.0267.068.040.0060.00NPT 3/4-14NPT 1/4-183202910 0
  DR590-236-40-16-4D-T 59.0060.00236.0271.068.040.0060.00NPT 3/4-14NPT 1/4-183260148 0

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