DDD-E3

eep Double Tube Drills ith External 4 Start Thread onnection and Brazed ps (18.4-65 dia.)OA DC PLL DCONMS
NOM 0 refersto non-coated drill head, NOM 2 refers to coated drill head.
DesignationDCN(1)DCX(2)OALDCONMSPLTs(3)Tsi(4)
DDD-E3 18.41-20.00 NOM 018.4120.0050.0016.002.90TDO-I0TDI-N0
DDD-E3 18.41-20.00 NOM 218.4120.0050.0016.002.90TDO-I0TDI-N0
DDD-E3 20.01-21.80 NOM 020.0121.8056.0018.003.20TDO-I1TDI-N1
DDD-E3 20.01-21.80 NOM 220.0121.8056.0018.003.20TDO-I1TDI-N1
DDD-E3 21.81-24.10 NOM 021.8124.1056.0019.503.20TDO-I2TDI-N2
DDD-E3 21.81-24.10 NOM 221.8124.1056.0019.503.20TDO-I2TDI-N2
DDD-E3 24.11-26.40 NOM 024.1126.4057.5021.003.50TDO-I3TDI-N3
DDD-E3 24.11-26.40 NOM 224.1126.4057.5021.003.50TDO-I3TDI-N3
DDD-E3 26.41-28.70 NOM 026.4128.7060.5023.503.70TDO-I4TDI-N4
DDD-E3 26.41-28.70 NOM 226.4128.7060.5023.503.70TDO-I4TDI-N4
DDD-E3 28.71-31.00 NOM 028.7131.0063.5025.504.00TDO-I5TDI-N5
DDD-E3 28.71-31.00 NOM 228.7131.0063.5025.504.00TDO-I5TDI-N5
DDD-E3 31.01-33.30 NOM 031.0133.3063.5028.004.10TDO-I6TDI-N6
DDD-E3 31.01-33.30 NOM 231.0133.3063.5028.004.10TDO-I6TDI-N6
DDD-E3 33.31-36.20 NOM 033.3136.2070.5030.004.50TDO-I7TDI-N7
DDD-E3 33.31-36.20 NOM 233.3136.2070.5030.004.50TDO-I7TDI-N7
DDD-E3 36.21-39.60 NOM 036.2139.6073.5033.004.80TDO-I8TDI-N8
DDD-E3 36.21-39.60 NOM 236.2139.6073.5033.004.80TDO-I8TDI-N8
DDD-E3 39.61-43.00 NOM 039.6143.0073.5036.005.30TDO-I9TDI-N9
DDD-E3 39.61-43.00 NOM 239.6143.0073.5036.005.30TDO-I9TDI-N9
DDD-E3 43.01-47.00 NOM 043.0147.0075.0039.005.50TDO-I10TDI-N10
DDD-E3 43.01-47.00 NOM 243.0147.0075.0039.005.50TDO-I10TDI-N10
DDD-E3 47.01-51.70 NOM 047.0151.7079.0043.006.10TDO-I11TDI-N11
DDD-E3 47.01-51.70 NOM 247.0151.7079.0043.006.10TDO-I11TDI-N11
DDD-E3 51.71-56.20 NOM 051.7156.2082.0047.006.50TDO-I12TDI-N12
DDD-E3 51.71-56.20 NOM 251.7156.2082.0047.006.50TDO-I12TDI-N12
DDD-E3 56.21-65.00 NOM 056.2165.0084.0051.006.60TDO-I13TDI-N13
DDD-E3 56.21-65.00 NOM 256.2165.0084.0051.006.60TDO-I13TDI-N13
  • The drill tip is supplied in a grade that is suitable to machine the material group indicated in the drill head designation: ISO P, K, M, N materials
  • NOM 0 refers to

non-coated drill head, NOM 2 refers to coated drill head. Ordering example: DDD-E3 47.10 OT-P0 For quotation form and user guide, see pages 268-269, 274-280 (1) Cutting diameter minimum (2) Cutting diameter maximum (3) Outer tube designation (4) Inner tube designation

For holders, see pages: TDO-I (D18.41-65.00) (266)

Universal Marking for Deep Drilling Tools

D-Tool diameter
Metric-D18.40
Inch-D.724
d-Pilot diameter
d23.5D
Metric-
Inch-d.630A / B
Tool style
D18.40d23.5
A-Single cutting edgeD.724d.630
B4DT18
B-Multiple cutting edges[Lot No.]
Thread typed
1ST-Single-start thread single tube
2ST-Two-start thread single tubeThread type

4ST- Four-start thread single tube 4DT- Four-start thread double tube 18- Tube diameter