Product Codes

 

Diagram

 

Field 3-7 Diameter

Decimal point between fields 4 & 5, size to 3 decimal places

Fields 8 Contour (Gun drills only. All other drills are A)

  • A - C1 Standard
  • C - C2 Grey Cast Iron
  • D - C3 Gun boring
  • E - C4 Crankshafts, Aluminium > dia � 4.0
  • X - Special

Fields 9-12 Length (No decimal point)

  • Gun Drills - Overall length
  • Speedfeed - Flute length
  • Ventec - Flute length
  • Speedbit - Flute length

Fields 13&14 Driver Type (See separate list for driver codes)


Fields 15 Workpiece Material

A Steel/Non ferrous/Cast Iron

  • H Grey Cast Iron
  • T Cast Iron (high phosphorus content)
  • M Stainless Steel, High Si content aluminium

Field 16 Nose Grinds

  • A NG6/NG8 Standard
  • B NG4 Aluminium
  • E NG13 Grey Cast Iron
  • F NG73 Stack
  • G NG80 Flat bottom
  • H NG82 Inconel
  • J NG83 Crankshaft
  • K NG86 Wood
  • X Special