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PCD G-Drill,G-Reamers and Brazed Cutter
PCD and Carbide Drills - Precision Drilling in Non-Ferrous Materilas and Cast Iron
- Rigidity is 5-times that of comparable HSS drills
- Superior Accuracy
- Excellent Straightness
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Technical Data
Tolerance Capability


Hole Diameter Tolerance Capability - 3 Sigma

L/D
Metric Inch
TYPE L/D ≤ 2 2 5 L/D ≤ 2 2 5
G-Drill 30Ám 35 50 .0012 .0014 .0020
*GA-Drill 25 30 40 .0010 .0012 .0015
G7-Drill 20 25 30 .0008 .0010 .0012
PCD G-Drill 20 20 25 .0008 .0008 .0010
PCD G7-Drill 13 18 23 .0005 .0007 .0009
GI-Drill 60 80 100 .0024 .0030 .0040
GF-Drill 30 40 50 .0012 .0015 .0020
*GA: Use for heat-treated cast aluminum and diecast aluminum.

The above tolerance capability results are based on certain cutting conditions. Performance of the tool may vary depending on machining conditions.


Surface Roughness Capability - 3 Sigma

  COOLANT
Metric Inch
TYPE Flood Coolant Thru Tool Coolant Flood Coolant Thru Tool Coolant
G-Drill 18 RZ 12.5 RZ 205 RMS 143 RMS
*GA-Drill 12.5 9 143 103
G7-Drill 8.7 5.5 100 63
PCD G-Drill 5.5 2.8 63 32
PCD G7-Drill 3.2 1.2 38 14
GI-Drill 25 18 285 205
GF-Drill 18 12.5 205 143
*GA: Use for heat-treated cast aluminum and diecast aluminum.

The above surface roughness capability results are based on certain cutting conditions. Performance of the tool may vary depending on machining conditions.