ADO Advanced Performance Coolant–Through Carbide Drill
Deep Hole Operational Guidelines
1. Make a pilot hole. (For 10-30D)
1. Make a pilot hole. (For 40 & 50D)
For a pilot hole, select 0.0008”-0.0031” (0.02-0.08mm) larger size drill than ADO 10D, ADO 15D, ADO 20D and ADO 30D. If the needed pilot drill size is not available, we recommend using the same diameter drill from ADO 3D.
D For a pilot hole, select 0.0008”-0.0031” (0.02-0.08mm) larger size drill than ADO 40D and ADO 50D. If the needed pilot drill size is not available, we recommend using the same diameter drill from ADO 5D or ADO-TRS.
D
ADO 10D / ADO 15D / ADO 20D / ADO 30D D+0.0008”-0.0031” (0.02-0.08mm)
ADO 40D / ADO 50D D+0.0008”-0.0031” (0.02-0.08mm)
ADO 10D / ADO 15D / ADO 20D / ADO 30D D+0.0008”-0.0031” (0.02-0.08mm)
1D-3D
5D
1D-3D
Remaining Steps are the Same for 10-50D
2. Insert the extra long drill into a pilot hole with zero or low revolution (below 500rpm).
4. After drilling, move the drill away from the bottom of the hole, then reduce its speed while pulling it out of the hole. D
D
ADO 10D / ADO 15D / ADO 20D / ADO 30D D+0.0008”-0.0031” (0.02-0.08mm)
Make sure to use an internal coolant supply when drilling.
3. Increase the revolution to the designated speed and start drilling.
1D-3D
Drilling a Curved Surface
Improve Accuracy & Hole Condition
When working on a curved surface, we recommend piloting with A Brand ADF flat drill.
If, after piloting with ADO-5D and drilling with ADO- 40D/50D, hole condition or accuracy is poor or machining is difficult, ADO-20D/30D may be used as an intermediate drilling step. This three-step process may improve accuracy and condition as well as permit more aggressive parameters.
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Drilling Technical
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