1-3 Steels < HRC38
Unalloyed Steels, Tensile Strength 1200N/mm2(about HRC38)
Green or Red Ring
40 degree spiral flute for Blind Holes
Form C: 2~3 chamfering.
Tolerance: ISO1-4H/5H, ISO 2-6H & 6HX, ISO-6G, Oversize-7G
Tin coating
Green or Red Ring
40 degree spiral flute for Blind Holes
Form C: 2~3 chamfering.
Tolerance: ISO1-4H/5H, ISO 2-6H & 6HX, ISO-6G, Oversize-7G
Tin coating
Best Art. No. in normal stock: DIN 371: 4345/80
DIN376: 6345/80,
JIS B0251/5: 4345/80/JS & 6345/80/JS
Other Art. No. for Best recommendation: DIN371: B4345/80, 4340, B4340, 4245, 4245/81
DIN376: B6345/80, 6340, B6340, 6245, 6245/81
