Explanation of icons

2D

E High speed steelNitriding/OxidizingCutting length
Nitride Oxide
High speed steelCoating CoatedSpiral pointed tap
through hole use
High speed steelFor blind hole withHand tap
(Cobalt HSS)through coolant hole
Powder HSSFor through hole withSpiral fluted tap
radial coolant holethrough hole use
Ultra micro grainFor left hand threadSpiral fluted tap
cemented carbideblind hole use
Left hand
Low spiral
Alloy steelFor synchronizedfluted tap
feedingblind hole use
Low spiral fluted tap
ToolNumber of threadsblind hole use
Tool steel
steelon chamferspecially for horizontal
tapping
Front face
Number of threadsCarbon steel and
low alloy steel Specification
Oxidizingon chamferIS P Tapping Speeds

5 〜10 Oxide (for Round Die) (m/min) Center drills

Nitriding left hand cut Nitride

COLOUR RINGS

YELLOW for sticky and soft steel ≤500N/mm2

BLUE (VA) for stainless steel and general steel

RED for hard steel 30~45 HRC

WHITE for cast iron

ORANGE for nickel base alloy, alloy steel (CrMo, NiCrMo) and stainless steel (V4A)

PINK for titanium alloy, alloy steel (CrMo, NiCrMo) ≥950N/mm2

GREEN for aluminium casting and diecasting (Si≤12%)