Explanation of icons

2D

E High speed steel Nitriding/Oxidizing Cutting length

Nitride Oxide

High speed steel Coating Coated Spiral pointed tap

through hole use

High speed steel For blind hole with Hand tap

(Cobalt HSS) through coolant hole

Powder HSS For through hole with Spiral fluted tap

radial coolant hole through hole use

Ultra micro grain For left hand thread Spiral fluted tap

cemented carbide blind hole use Left hand Low spiral

Alloy steel For synchronized fluted tap

feeding blind hole use Low spiral fluted tap

Tool Number of threads blind hole use

Tool steel

steel on chamfer specially for horizontal

tapping Front face Number of threads Carbon steel and low alloy steel Specification

Oxidizing on chamfer IS 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%)