Descriptions

• Used to drill female 60° centre holes in the end of shafts and components, which will later revolve between centres
• Suitable for materials up to 1600N/mm2

Features

• Drills, Carbide, Centre
• Designed to maintain accurate centre holes on long production runs
• Also used to ensure accurate starting and centering when precision drilling is required

Specifications

• Designation: N
• Material: VHM
• Finish: TiCN
• Shank Form: HA
• X:als
• Shank Tolerance: h6
• Point Type: 60° Stepped
• Cutting Edges: ul
• Standard: ANSI B94-11

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 < 5% of alloying elements- 180 HB
• Optimal for Steel - Low alloy & cast < 5% of alloying elements- 275 HB
• Optimal for Steel - Low alloy & cast < 5% of alloying elements- 300 HB
• Optimal for Steel - Low alloy & cast < 5% of alloying elements- 350 HB
• 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 Stainless Steel – Austenitic- 180 HB
• Optimal for Stainless Steel – Duplex- 250 HB
• Optimal for Stainless Steel - Precipitation Hardening- 250 HB
• Optimal for Cast Iron, Grey (GG) - Ferritic / Pearlitic – 180 HB
• Optimal for Cast Iron, Nodular (GGG) - Ferritic- 160 HB
• Optimal for Cast Iron, Malleable - Ferritic- 130 HB
• Optimal for Hardened Steel- 45 HRC