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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
Recommended Cutting Condition Parameters

Starting Feeds and Speeds (Conservative, varies with parameters)

METRIC

DRILL DIAMETER \ TYPE ALUMINUM
G-Drill
(GK-Drill)
Twist Drill
(GS-Drill)
GA-Drill G7-Drill
4 ~ 6 Speed (m/min.) 70 ~ 160 70 ~ 160 70 ~ 160 70 ~ 160
Feed(mm/rev.) 0.05 ~ 0.15 0.05 ~ 0.15 0.06 ~ 0.10 0.06 ~ 0.10
6 ~ 10 Speed (m/min.) 90 ~ 180 90 ~ 180 90 ~ 180 90 ~ 180
Feed(mm/rev.) 0.10 ~ 0.20 0.10 ~ 0.20 0.10 ~ 0.15 0.10 ~ 0.15
10 ~ 14 Speed (m/min.) 100 ~ 200 100 ~ 200 100 ~ 200 100 ~ 200
Feed(mm/rev.) 0.20 ~ 0.30 0.20 ~ 0.30 0.15 ~ 0.25 0.15 ~ 0.25
14 ~ 20 Speed (m/min.) 100 ~ 200 100 ~ 200 100 ~ 200 100 ~ 200
Feed(mm/rev.) 0.25 ~ 0.35 0.25 ~ 0.35 0.20 ~ 0.30 0.20 ~ 0.30
20 ~ 30 Speed (m/min.) 100 ~ 200 100 ~ 200 100 ~ 200 100 ~ 200
Feed(mm/rev.) 0.35 ~ 0.45 0.35 ~ 0.45 0.25 ~ 0.35 0.25 ~ 0.35

DRILL DIAMETER \ TYPE ALUMINUM CAST IRON
PCD G-Drill
(GP-Grill)
PCD G7-Drill
(GD-Drill)
G-Drill
(GI-Drill)
GF-Drill
4 ~ 6 Speed (m/min.) 50 ~ 200 70 ~ 160 50 ~ 80 40 ~ 80
Feed(mm/rev.) 0.08 ~ 0.16 0.06 ~ 0.10 0.06 ~ 0.09 0.05 ~ 0.10
6 ~ 10 Speed (m/min.) 100 ~ 300 90 ~ 180 50 ~ 80 40 ~ 80
Feed(mm/rev.) 0.16 ~ 0.32 0.10 ~ 0.15 0.10 ~ 0.15 0.08 ~ 0.15
10 ~ 14 Speed (m/min.) 100 ~ 300 100 ~ 200 60 ~ 90 50 ~ 100
Feed(mm/rev.) 0.24 ~ 0.48 0.15 ~ 0.25 0.15 ~ 0.25 0.10 ~ 0.20
14 ~ 20 Speed (m/min.) 100 ~ 300 100 ~ 200 60 ~ 100 50 ~ 100
Feed(mm/rev.) 0.28 ~ 0.56 0.20 ~ 0.30 0.20 ~ 0.30 0.10 ~ 0.25
20 ~ 30 Speed (m/min.) 100 ~ 300 100 ~ 200 60 ~ 100 50 ~ 100
Feed(mm/rev.) 0.55 ~ 0.65 0.25 ~ 0.35 0.25 ~ 0.35 0.15 ~ 0.30

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