- GUNDRILL drillis at high speed in diameter from 2mm to~65mm in depth up to 100 x's dia.and greater.
- BTA DRILL drills at high speed in diameter from 16mm to~105mm in depth up to 100 x's dia.
- High penetration rates Example : under 1mm per 1000mm depth
- Exellent finish
Supplying a large amount of coolant oil and Gundrill pad makes bunishing effect.
It is better than Twist Drill.
- High tolarence, precesion roundness
Drilling high hardness
- It is able to drill HRC 40~ 50 because of Carbide tip.