Page 142 - Demo

140 ISCAR GENERAL PURPOSE DRILLINGThese drills are available with a diameter range of 3 to 12 mm (0.118 to 0.47 inches) according to tolerance m7 with 0.1 mm equivalent to 0.004 inch increments. SCD %u2026APN/ACPN drills designed with internal coolant holes for length to diameter ratio of 3XD, 5XD, 8XD and without internal coolant holes for length to diameter ratio of 3XD, 5XD. All SCD %u2026APN/ACPN drills are made from grade IC908, which is multilayered PVD coated and provides maximum toughness and increased wear resistance featuring prolonged tool life and high efficiency machining. SCD ... APN/ACPN is clearly the key to success in machining holes for general use.The SCD%u2026SXC (16XD-50XD) are extra-long solid carbide drills. The initial contact between the drill and the material, especially when it comes to long drills, greatly affects the drilling result. Smooth penetration into the material is ensured by a sharper point angle than in short tools. These drills are designed with double margins to improve accuracy, stability, and surface finish.The combination of polished and enlarged flutes with optimal coolant nozzle size provide proper chip evacuation and the multi-layer coating allows drilling at high speed while achieving maximum tool life. ISCAR solid carbide long drills are excellent for drilling small diameters and deep holes in automotive crankshafts, camshafts, connecting rods, cylinder heads, cylinder blocks, hydraulic blocks and for dies and molds. These drills feature high metal removal rates that are at least six times faster than HSS drills. The advantageous metal removal rate saves machine time and man hours for much better overall productivity.