Page 1 - burs - carbide-small
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Burs — Carbide
Selection by Cut:
Simple Cut:
- Provides the best surface finish and largest contact patch on the work piece.
- Demands greater operator skill since the single flute direction pulls the bur into the work piece.
Double Cut:
- Most popular geometry as the dual flute direction reduces the contact patch on the work piece and
therefore provides easier operator control while still maintaining a good surface finish.
Aluminum Cut:
- These burs employ a coarser flute which results in improved cutting performance for aluminum and
aluminum alloys.
CARBIDE BURS - SPEEDS
CUTTING DIA. SUGGESTED RPM MAXIMUM RPM
1/16 55,000 - 85,000 90,000
1/8 35,000 - 65,000 80,000
3/16 30,000 - 55,000 70,000
1/4 25,000 - 50,000 70,000
5/16 20,000 - 40,000 67,000
3/8 18,000 - 40,000 63,000
7/16 16,000 - 38,000 58,000
1/2 14,000 - 36,000 50,000
5/8 12,000 - 25,000 40,000
3/4 10,000 - 20,000 33,000
1 7,500 - 20,000 25,000
When using double cut: Reduce speeds by 25% approximately.
For Stainless steel material: Increase speeds by 50% approximately.