9 P615 Rotary Burr - Flame, Shape H VA single cut flute style with medium spaced edges for round edge contouring and welding preparation. Carbide head with toughened and hardened steel shank. First choice for stainless steels. Bright Workpiece material group suitability. Recommended operating speed (RPM) on page 229. M1.1 M1.2 M2.1 M2.2 M2.3 M3.1 M3.2 M3.3 M4.1 M4.2 K4.1 K4.2 Brazed on Steel Shank with DCON MS tolerance h7. Product DC DCON MS LU OAL [mm] [mm] [mm] [mm] P6158.0X6.0 8.00 6.00 19.00 64.0 P6159.6X6.0 9.60 6.00 19.00 65.0 P61512.7X6.0 12.70 6.00 32.00 77.0 266