1-4 Steels < HRC44
Unalloyed Steels, Tensile Strength 1400N/mm2(about HRC44)
Red or Golden Ring
40 degree spiral flute for Blind Holes
Form C: 2~3 chamfering.
Tolerance: ISO 2-6HX & 6HX, ISO3-6G
TICN coating
Red or Golden Ring
40 degree spiral flute for Blind Holes
Form C: 2~3 chamfering.
Tolerance: ISO 2-6HX & 6HX, ISO3-6G
TICN coating
Best Art. No. in normal stock: DIN 371: 4245/81
DIN376: 6245/81,
JIS B0251/5: 4245/81/JS & 6245/81/JS
Other Art. No. for Best recommendation: DIN371: 4890
DIN376: 6890
