Descriptions

• Short flute length jobber drill
• Alternative to carbide where application lacks rigidity
• Coolant fed directly to the cutting edges to help evacuate the swarf from the hole
• For use in CNC machines with through spindle coolant supply
• Endmill shank for greater accuracy
• TiAlN for longer tool life

Specifications

• Designation: NH
• Material: High Speed Steel Cobalt
• Finish: TiAIN
• Maximum Cut Depth: 5XD
• Shank Form: E
• Helix Angle: R40 IK
• X: ru
• Point Tolerance: h8
• Point Type: 130° 4 Facet Form B
• Cutting Edges: ul
• Standard: Sutton

Applications

• Optimal for Steel - Non-alloy, cast & free cutting  
  • ~ 0.15 %C- 125 HB
  • ~ 0.45 %C- 190 HB
  • ~ 0.45 %C- 250 HB
  • ~ 0.75 %C- 270 HB
• Optimal for
  • Steel - Low alloy & cast < 5% of alloying elements- 180 HB; 275 HB
  • Steel - Corrosion resistant & cast - Ferritic / Martensitic- 200 HB
  • Stainless Steel - Precipitation Hardening- 250 HB
  • Cast Iron, Grey - Ferritic / Pearlitic- 180 HB; Pearlitic- 260 HB
  • Cast Iron, Nodular (Ferritic- 160 HB; Pearlitic- 250 HB)
  • Cast Iron, Malleable
    • Ferritic- 130 HB
    • Pearlitic- 230 HB
  • Al & Mg
    • cast alloy ≤12% Si - Non Heat Treatable – 75 HB
    • cast alloy ≤12% Si - Heat Treatable – 90 HB
  • Cu & Cu alloys 
    • Brass- 90 HB
    • Brass/Bronze – 100 HB
  • Cast Fe – Chilled – 400 HB