- Unique R gash geometry enables super low cutting resistance and exceptional chip control
- New flute specification with smooth chip evacuation and high tool rigidity qualities ideal for ultra-deep-hole applications
- Highly rigid 25° helical flute
Carbide Long Drills with Oil Holes – ADO-40D・50D
Ultra-efficiency deep-hole 50xD drilling is made possible with the R gash geometry that breaks chips into compact pieces with excellent evacuation capability, as well as a unique flute specification and helix angle to ensure tool rigidity and hole accuracy.
Low Carbon Steel・Mild Steel・Medium Carbon Steel・High Carbon Steel・Alloy Steel・Hardened Steel・Stainless Steel・Cast Iron・Ductile Cast Iron
Long tool life even in ultra-deep-hole drilling applications