상세설명
                | BTA ○○.○○P series (Brazed Type) | 
|  Deep hoole making (drill dia. x 100)  Long tool life with TIN coated  Remarkable Hole tolerance - Tolerance : within IT 10 - Surface roughness : Rma x 5S ↓  Good chip evacuation | 
| BTA ○○.○○P series (Brazed Type) | 
|  Deep hoole making (drill dia. x 100)  Long tool life with TIN coated  Remarkable Hole tolerance - Tolerance : within IT 10 - Surface roughness : Rma x 5S ↓  Good chip evacuation |