Tools > Drilling > Carbide Drill Bits | Sutton Tools Carbide Bits - IK | Descriptions | 8xD Drill R30 N IK | Suitable for materials up to 1400N/mm2 | Dimensions | d1 (mm): 7.5 | d2 (mm): 8 | l1 (mm): 114 | l2 (mm): 76 | Pack Quantity: 1 | Features | Strong core | Micro geometry & surface conditioning for optimal chip control | AlCrN for maximum tool life | Specifications | Designation: N | Material: VHM | Finish: AlCrN | Maximum Cut Depth: 8XD | Shank Form: HA | Helix Angle: R30 - IK | X: ru | Point Tolerance: m7 | Shank Tolerance: h6 | Point Type: 140 Form C | Cutting Edges: ul | Standard: Sutton | Applications | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.15 %C)- 125 HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)- 190 HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)- 250 HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.75 %C)- 270 HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.75 %C)- 300 HB | Optimal for Steel - Low alloy & cast | Optimal for Steel - Low alloy & cast | Optimal for Steel - Low alloy & cast | Optimal for Steel - Low alloy & cast | Optimal for Steel - High alloy, cast & tool- 200 HB | Optimal for Steel - High alloy, cast & tool- 325 HB | Optimal for Steel - Corrosion resistant & cast Martensitic- 240 HB | Optimal for Cast Iron, Grey (GG) - Ferritic / Pearlitic- 180 HB | Optimal for Cast Iron, Grey (GG) Pearlitic- 260 HB | Optimal for Cast Iron, Nodular (GGG) - Ferritic- 160 HB | Optimal for Cast Iron, Nodular (GGG) Pearlitic- 250 HB | Optimal for Cast Iron, Malleable - Ferritic- 130 HB | Optimal for Cast Iron, Malleable Pearlitic- 230 HB